Dr Kristian Groom

PhD, MPhys

Department of Electronic and Electrical Engineering

Senior Lecturer

Semiconductor Materials and Devices Research Group

k.m.groom@sheffield.ac.uk
+44 114 222 5822

Full contact details

Dr Kristian Groom
Department of Electronic and Electrical Engineering

Profile

I graduated with a MPhys (1999) and a PhD (2003) both from the Dept. of Physics at The University of Sheffield. My thesis detailed research into the carrier processes and dynamics in quantum dot lasers.

I joined the EEE Dept in 2003 initially as a postdoctoral researcher investigating quantum dot lasers for telecommunications applications as part of a European project, but soon became involved in developing device fabrication capabilities for a broad range of additional projects including quantum cascade lasers, InP photodiodes, and single photon devices.

In 2005 I was awarded a Royal Academy of Engineering Research Fellowship for research into advanced semiconductor laser engineering, focusing on regrowth technologies for GaAs, including buried self-aligned stripe and distributed feedback (ie. single frequency) lasers, which provided a potential platform for GaAs photonic integration and next generation vertically-emitting lasers.

At the same time, a burgeoning interest in biophotonics research drew me in to investigate GaAs based superluminescent diodes as low coherence light sources for application in optical coherence tomography.

Following the end of my Fellowship I was appointed as Lecturer in 2010, moving to Senior Lecturer in 2012.

My research continues to focus on semiconductor optoelectronic component design and manufacture, with an interest in photonic integration and in the application of near- and mid-IR semiconductor lasers, superluminescent diodes, amplifiers, detectors and passive optical elements for application in high value manufacturing methodologies, such as in additive manufacturing and embeddable metrology.

I am currently working on projects to develop capability for the heterogeneous integration of III-V semiconductor components and circuits upon a range of substrates to enable new sensor technologies, both through the collaborative EPSRC Heteroprint project and via the EPSRC Future Photonics Hub.

At the same time, I am pursuing research into the application of laser diode arrays for efficient high-speed additive manufacturing of both metallic and polymer parts.

Research interests

Optoelectronic device manufacture using novel fabrication strategies
Additive manufacturing using semiconductor laser arrays
Semiconductor lasers, superluminescent diodes, optical amplifiers and photodiodes
Semiconductor quantum dots
Mid-infrared quantum cascade lasers
Photonic device engineering for application in metrology and biomedical imaging systems

Publications

Journal articles

CAGLAR H, LIANG A, GROOM K & MUMTAZ K (2024) “Multi-laser powder bed fusion of Ti6Al4V: diode area melting utilizing low-power 450 nm diode lasers”. Journal of Materials Processing Technology. View this article in WRRO
Mitchell CJ, Osman A, Li K, Penadés JS, Nedeljkovic M, Zhou L, Groom KM, Heffernan J & Mashanovich G (2022) Hybrid integration methodology for quantum cascade lasers with germanium waveguides in mid-IR. EPJ Web of Conferences, 266, 01008-01008.
Alsaddah M, Khan A, Groom K & Mumtaz K (2022) Diode area melting of Ti6Al4V using 808 nm laser sources and variable multi-beam profiles. Materials & Design, 215, 110518-110518.
Goldberg GR, Kim D-H, Taylor RJE, Childs DTD, Ivanov P, Ozaki N, Kennedy KL, Groom KM, Harada Y & Hogg RA (2020) Bandwidth enhancement in an InGaN/GaN three-section superluminescent diode for optical coherence tomography. Applied Physics Letters, 117(6), 061106-061106.
Arredondo M, Ali H, Groom KM & Mumtaz KA (2018) Investigating the melt pool properties and thermal effects of multi-laser diode area melting. The International Journal of Advanced Manufacturing Technology, 97(1-4), 1383-1396. View this article in WRRO
Zavala-Arredondo M, Groom K & Mumtaz KA (2017) Diode area melting single-layer parametric analysis of 316L stainless steel powder. The International Journal of Advanced Manufacturing Technology. View this article in WRRO
Goldberg GR, Boldin A, Andersson SML, Ivanov P, Ozaki N, Taylor RJE, Childs DTD, Groom KM, Kennedy KL & Hogg RA (2017) Gallium Nitride Superluminescent Light Emitting Diodes for Optical Coherence Tomography Applications. IEEE Journal of Selected Topics in Quantum Electronics, 23(6), 1-11. View this article in WRRO
Zavala-Arredondo M, Boone N, Willmott J, Childs DTD, Ivanov P, Groom KM & Mumtaz K (2017) Laser diode area melting for high speed additive manufacturing of metallic components. Materials and Design, 117, 305-315. View this article in WRRO
Lei H, Stevens BJ, Fry PW, Babazadeh N, Ternent G, Childs DT & Groom KM (2016) A GaAs-based self-aligned stripe distributed feedback laser. Semiconductor Science and Technology, 31(8), 085001-085001. View this article in WRRO
Ghazal OMS, Childs DT, Stevens BJ, Babazadeh N, Hogg RA & Groom KM (2016) GaAs-based superluminescent diodes with window-like facet structure for low spectral modulation at high output powers. SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 31(4). View this article in WRRO
Guan G, Hirsch M, Lu ZH, Childs DTD, Matcher SJ, Goodridge R, Groom KM & Clare AT (2015) Evaluation of selective laser sintering processes by optical coherence tomography. MATERIALS & DESIGN, 88, 837-846. View this article in WRRO
Taylor RJE, Williams DM, Childs DTD, Stevens BJ, Shepherd LR, Khamas S, Groom KM, Hogg RA, Ikeda N & Sugimoto Y (2013) All-semiconductor photonic crystal surface-emitting lasers based on epitaxial regrowth. IEEE Journal on Selected Topics in Quantum Electronics, 19(4).
Williams, DM , Groom KM, stevens, bj , childs, dtd , taylor, rj , khamas, s , hogg, r , ikeda, n & sugimoto, y (2012) Epitaxially Regrown GaAs-Based Photonic Crystal Surface-Emitting Laser. IEEE Photonics Technology Letters, 24(11), 966-968.
Williams DM, Groom KM, Stevens BJ, Childs DTD, Taylor RJE, Khamas S, Hogg RA, Ikeda N & Sugimoto Y (2012) Optimisation of Coupling between Photonic Crystal and Active Elements in an Epitaxially Regrown GaAs Based Photonic Crystal Surface Emitting Laser. Japanese Journal of Applied Physics, 51(2S), 02BG05-02BG05.
Wang T, Lee A, Tutu F, Seeds A, Liu H, Jiang Q, Groom K & Hogg R (2012) The effect of growth temperature of GaAs nucleation layer on InAs/GaAs quantum dots monolithically grown on Ge substrates. APPLIED PHYSICS LETTERS, 100(5).
Williams DM, Groom KM, Stevens BJ, Childs DTD, Taylor RJE, Khamas S, Hogg RA, Ikeda N & Sugimoto Y (2012) Optimisation of coupling between photonic crystal and active elements in an epitaxially regrown GaAs based photonic crystal surface emitting laser. Japanese Journal of Applied Physics, 51(2 PART 2).
Wang T, Lee A, Tutu F, Seeds A, Liu H, Jiang Q, Groom K & Hogg R (2012) The effect of growth temperature of GaAs nucleation layer on InAs/GaAs quantum dots monolithically grown on Ge substrates. Applied Physics Letters, 100(5).
Spencer P, Clarke E, Murray R, Groom KM, Alexander RR & Hogg RA (2011) Subthreshold diode characteristics of InAs/GaAs quantum dot lasers. PHYS REV B, 83(20). View this article in WRRO
Stevens BJ, Groom KM, Roberts JS, Fry PW, Childs DTD & Hogg RA (2010) Distributed feedback laser employing buried GaAs/InGaP index-coupled grating. ELECTRON LETT, 46(15), 1076-U51.
Krstajić N, Smith LE, Matcher SJ, Childs DTD, Bonesi M, Greenwood PDL, Hugues M, Kennedy K, Hopkinson M, Groom KM , MacNeil S et al (2010) Quantum dot superluminescent diodes for optical coherence tomography: Skin imaging. IEEE Journal on Selected Topics in Quantum Electronics, 16(4), 748-754.
Greenwood PDL, Childs DTD, Kennedy K, Groom KM, Hugues M, Hopkinson M, Hogg RA, Krstajić N, Smith LE, Matcher SJ , Bonesi M et al (2010) Quantum dot superluminescent diodes for optical coherence tomography: Device engineering. IEEE Journal on Selected Topics in Quantum Electronics, 16(4), 1015-1022. View this article in WRRO
Childs D, Groom KM, Ray SK, Liu HY, Hopkinson M & Hogg RA (2009) Flat-topped emission centred at 1 250 nm from quantum dot superluminescent diodes. S AFR J SCI, 105(7-8), 276-277.
Greenwood PDL, Childs DTD, Groom KM, Stevens BJ, Hopkinson M & Hogg RA (2009) Tuning Superluminescent Diode Characteristics for Optical Coherence Tomography Systems by Utilizing a Multicontact Device Incorporating Wavelength-Modulated Quantum Dots. IEEE J SEL TOP QUANT, 15(3), 757-763.
Groom KM, Stevens BJ, Assamoi PJ, Roberts JS, Hugues M, Childs DTD, Alexander RR, Hopkinson M, Helmy AS & Hogg RA (2009) Quantum Well and Dot Self-Aligned Stripe Lasers Utilizing an InGaP Optoelectronic Confinement Layer. IEEE J SEL TOP QUANT, 15(3), 819-827. View this article in WRRO
Judson PDL, Groom KM, Childs DTD, Hopkinson M & Hogg RA (2009) Multi-section quantum dot superluminescent diodes for spectral shape engineering. IET OPTOELECTRONICS, 3(2), 100-104.
Stevens BJ, Groom KM, Childs DTD, Ang Y, Alexander RR, Krysa AB, Roberts JS, Helmy AS & Hogg RA (2009) Operating Characteristics of GaAs/InGaP Self Aligned Stripe Lasers. JAPANESE JOURNAL OF APPLIED PHYSICS, 48(4).
Judson PDL, Groom KM, Childs DTD, Hopkinson M, Krstajic N & Hogg RA (2009) Maximising performance of optical coherence tomography systems using a multi-section chirped quantum dot superluminescent diode. MICROELECTRONICS JOURNAL, 40(3), 588-591.
Groom KM, Stevens BJ, Childs DT, Alexander RR, Krysa AB, Roberts JS, Helmy AS & Hogg RA (2008) GaAs-based self-aligned laser incorporating InGaP opto-electronic confinement layer. ELECTRON LETT, 44(15), 905-907.
Stevens BJ, Childs DTD, Groom KM, Hopkinson M & Hogg RA (2008) A quantum dot swept laser source based upon a multisection laser device. JAPANESE JOURNAL OF APPLIED PHYSICS, 47(4), 2965-2967.
Beanland R, Sanchez AM, Childs D, Groom KM, Liu HY, Mowbray DJ & Hopkinson M (2008) Structural analysis of life tested 1.3 mu m quantum dot. J APPL PHYS, 103(1).
Alexander RR, Childs DTD, Agarwal H, Groom KM, Liu HY, Hopkinson M, Hogg RA, Ishida M, Yamarnoto T, Sugawara M , Arakawa Y et al (2007) Systematic study of the. effects of modulation p-doping on 1.3-mu m quantum-dot lasers. IEEE J QUANTUM ELECT, 43(11-12), 1129-1139.
Stevens BJ, Childs DTD, Groom KM, Hopkinson M & Hogg RA (2007) All semiconductor swept laser source utilizing quantum dots. APPL PHYS LETT, 91(12).
Ray SK, Choi TL, Groom KM, Stevens BJ, Liu HY, Hopkinson M & Hogg RA (2007) High-power and broadband quantum dot superluminescent diodes centered at 1250 nm for optical coherence tomography. IEEE J SEL TOP QUANT, 13(5), 1267-1272.
Zhang ZY, Luxmoore IJ, Jin CY, Liu HY, Jiang Q, Groom KM, Childs DT, Hopkinson M, Cullis AG & Hogg RA (2007) Effect of facet angle on effective facet reflectivity and operating characteristics of quantum dot edge emitting lasers and superluminescent light-emitting diodes. APPL PHYS LETT, 91(8).
Jin CY, Liu HY, Groom KM, Jiang Q, Hopkinson M, Badcock TJ, Royce RJ & Mowbray DJ (2007) Effects of photon and thermal coupling mechanisms on the characteristics of self-assembled InAs/GaAs quantum dot lasers. PHYS REV B, 76(8).
Liu HY, Badcock TJ, Jin CY, Nabavi E, Groom KM, Hopkinson M & Mowbray DJ (2007) Reduced temperature sensitivity of lasing wavelength in near-1.3 mu m InAs/GaAs quantum-dot laser with stepped composition strain-reducing layer. ELECTRON LETT, 43(12), 670-672.
Zhang ZY, Luxmoore IJ, Jiang Q, Liu HY, Groom KM, Childs DT, Hopkinson M, Cullis AG & Hogg RA (2007) Broadband quantum dot superluminescent LED with angled facet formed by focused ion beam etching. ELECTRON LETT, 43(10), 587-589.
Kennedy K, Revin DG, Krysa AB, Groom KM, Wilson LR, Cockburn JW & Hogg RA (2007) Fabrication and characterization of InP-based quantum cascade distributed feedback lasers with inductively coupled plasma etched lateral gratings. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 46(4B), 2424-2428.
Ray SK, Liu HY, Choi TL, Groom KM, Liew SL, Hopkinson M & Hogg RA (2007) Molecular beam epitaxial growth of high power quantum dot super-luminecent diodes. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 46(4B), 2418-2420.
Alexander RR, Childs D, Agarwal H, Groom KM, Liu HY, Hopkinson M & Hogg RA (2007) Zero and controllable linewidth enhancement factor in p-doped 1.3 mu m quantum dot lasers. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 46(4B), 2421-2423.
Badcock TJ, Royce RJ, Mowbray DJ, Skolnick MS, Liu HY, Hopkinson M, Groom KM & Jiang Q (2007) Low threshold current density and negative characteristic temperature 1.3 mu m InAs self-assembled quantum dot lasers. APPL PHYS LETT, 90(11).
Jin CY, Liu HY, Groom KM, Hopkinson M, Badcock TJ, Royce RJ & Mowbray DJ (2007) Photon coupling mechanism in 1.3-μm quantum-dot lasers. Optics InfoBase Conference Papers.
Jin CY, Liu HY, Groom KM, Hopkinson M, Badcock TJ, Royce RJ & Mowbray DJ (2007) Photon coupling mechanism in 1.3-μm quantum-dot lasers. Optics InfoBase Conference Papers.
Alexander RR, Childs D, Agarwal H, Groom KM, Liu HY, Hopkinson M, Hogg RA, Badcock TJ, Mowbray DJ, Skolnick MS , Ishida M et al (2007) Systematic study of the effects of δ-p-doping on 1.3μm dot-in-well lasers. Optics InfoBase Conference Papers.
Jin CY, Liu HY, Groom KM, Hopkinson M, Badcock TJ, Royce RJ & Mowbray DJ (2007) Photon coupling mechanism in 1.3-μm quantum-dot lasers. Optics InfoBase Conference Papers.
Ray SK, Choi TL, Groom KA, Liu HY, Hopkinson M & Hogg RA (2007) High-power 1.3-mu m quantum-dot superluminescent light-emitting diode grown by molecular beam epitaxy. IEEE PHOTONIC TECH L, 19(2-4), 109-111.
Marko IP, Adams AR, Sweeney SJ, Masse NF, Krebs R, Reithmaier JP, Forchel A, Mowbray DJ, Skolnick MS, Liu HY , Groom KM et al (2007) Band gap dependence of the recombination processes in InAs/GaAs quantum dots studied using hydrostatic pressure. PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 244(1), 82-86.
Ray SK, Groom KM, Alexander R, Kennedy K, Liu HY, Hopkinson M & Hogg RA (2006) Design, growth, fabrication, and characterization of InAs/GaAs 1.3 mu m quantum dot broadband superluminescent light emitting diode. J APPL PHYS, 100(10).
Kennedy K, Krysa AB, Roberts JS, Groom KM, Hogg RA, Revin DG, Wilson LR & Cockburn JW (2006) High performance InP-based quantum cascade distributed feedback lasers with deeply etched lateral gratings. APPL PHYS LETT, 89(20).
Jin CY, Badcock TJ, Liu HY, Groom KM, Royce RJ, Mowbray DJ & Hopkinson M (2006) Observation and modeling of a room-temperature negative characteristic temperature 1.3-mu m p-type modulation-doped quantum-dot laser. IEEE J QUANTUM ELECT, 42(11-12), 1259-1265.
Liu HY, Liew SL, Badcock T, Mowbray DJ, Skolnick MS, Ray SK, Choi TL, Groom KM, Stevens B, Hasbullah F , Jin CY et al (2006) p-doped 1.3 mu m InAs/GaAs quantum-dot laser with a low threshold current density and high differential efficiency. APPL PHYS LETT, 89(7).
Badcock TJ, Liu HY, Groom KM, Jin CY, Gutierrez M, Hopkinson M, Mowbray DJ & Skolnick MS (2006) 1.3 mu m InAs/GaAs quantum-dot laser with low-threshold current density and negative characteristic temperature above room temperature. ELECTRON LETT, 42(16), 922-923.
Ray SK, Groom KM, Liu HY, Hopkinson M & Hogg RA (2006) Broad-band superluminescent light emitting diodes incorporating quantum dots in compositionally modulated quantum wells. JPN J APPL PHYS 1, 45(4A), 2542-2545.
Zibik EA, Ng WH, Revin DG, Wilson LR, Cockburn JW, Groom KM & Hopkinson M (2006) Broadband 6 mu m . APPL PHYS LETT, 88(12).
Pellegrini S, Warburton RE, Tan LJJ, Ng JS, Krysa AB, Groom K, David JPR, Cova S, Robertson MJ & Buller GS (2006) Design and performance of an InGaAs-InP single-photon avalanche diode detector. IEEE J QUANTUM ELECT, 42(3-4), 397-403.
Sellers IR, Mowbray DJ, Badcock TJ, Wells JPR, Phillips PJ, Carder DA, Liu HY, Groom KM & Hopkinson M (2006) Infrared modulated interlevel spectroscopy of 1.3 mu m self-assembled quantum dot lasers using a free electron laser. APPL PHYS LETT, 88(8).
(2006) Mid-infrared optical coherence tomography: Application in tissue engineering. Optics InfoBase Conference Papers.
Kennedy K, Groom KM & Hogg RA (2006) Fabrication of v-groove gratings in InP by inductively coupled plasma etching with SiCl4/Ar. SEMICOND SCI TECH, 21(1), L1-L5.
Ray SK, Groom KM, Beattie MD, Liu HY, Hopkinson M & Hogg RA (2006) Broad-band superluminescent light-emitting diodes incorporating quantum dots in compositionally modulated quantum wells. IEEE PHOTONIC TECH L, 18(1-4), 58-60.
Young RJ, Stevenson RM, Shields AJ, Atkinson P, Cooper K, Ritchie DA, Groom KM, Tartakovskii AI & Skolnick MS (2005) Inversion of exciton level splitting in quantum dots. PHYS REV B, 72(11). View this article in WRRO
Marko IP, Adams AR, Sweeney SJ, Mowbray DJ, Skolnick MS, Liu HYY & Groom KM (2005) Recombination and loss mechanisms in low-threshold InAs-GaAs 1.3-mu m quantum-dot lasers. IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS, 11(5), 1041-1047.
Ray SK, Groom KM, Hogg RA, Liu HY, Hopkinson M, Badcock T, Mowbray DJ & Skolnick MS (2005) Improved temperature performance of 1.31-mu m quantum dot lasers by optimized ridge waveguide design. IEEE PHOTONIC TECH L, 17(9), 1785-1787. View this article in WRRO
Liu HY, Childs DT, Badcock TJ, Groom KM, Sellers IR, Hopkinson M, Hogg RA, Robbins DJ, Mowbray DJ & Skolnick MS (2005) High-performance three-layer 1.3-mu m InAs-GaAs quantum-dot lasers with very low continuous-wave room-temperature threshold currents. IEEE PHOTONIC TECH L, 17(6), 1139-1141. View this article in WRRO
Liu HY, Steer MJ, Badcock TJ, Mowbray DJ, Skolnick MS, Navaretti P, Groom KM, Hopkinson M & Hogg RA (2005) Long-wavelength light emission and lasing from InAs/GaAs quantum dots covered by a GaAsSb strain-reducing layer. APPL PHYS LETT, 86(14).
Ray SK, Groom KM, Hogg RA, Liu HY, Sellers IR, Hopkinson M, Badcock TJ, Ramsay AJ, Mowbray DJ & Skolnick MS (2005) Growth, fabrication, and operating characteristics of ultra-low threshold current density 1.3 mu m quantum dot lasers. JPN J APPL PHYS 1, 44(4B), 2520-2522.
Ray SK, Groom KM, Liu HY, Hopkinson M & Hogg RA (2005) Broad-band superluminescent light emitting diodes incorporating quantum dots in compositionally modulated quantum wells. Device Research Conference - Conference Digest, DRC, 2005, 71-72.
Tartakovskii AI, Makhonin MN, Sellers IR, Cahill J, Andreev AD, Whittaker DM, Wells JPR, Fox AM, Mowbray DJ, Skolnick MS , Groom KM et al (2004) Effect of thermal annealing and strain engineering on the fine structure of quantum dot excitons. PHYS REV B, 70(19).
Sellers IR, Liu HY, Groom KM, Childs DT, Robbins D, Badcock TJ, Hopkinson M, Mowbray DJ & Skolnick AS (2004) 1.3 mu m InAs/GaAs multilayer quantum-dot laser with extremely low room-temperature threshold current density. ELECTRON LETT, 40(22), 1412-1413.
Tartakovskii AI, Makhonin MN, Cahill J, Whittaker DM, Wells JPR, Fox AM, Mowbray DJ, Skolnick MS, Steer MJ, Groom KM & Hopkinson M (2004) Precise measurement of the fraction of charged dots in self-assembled quantum dot ensembles using ultrafast pump-probe techniques. APPL PHYS LETT, 85(12), 2226-2228.
Hogg R, Groom KM, Liu HY, Sellers IR, Ray SK, Badcock T, Gutierrez M, Hopkinson M, Ng JS, R. David JP , Mowbray DJ et al (2004) Growth, Fabrication, and Operating Characteristics of Ultra-Low Threshold 1.31μm Quantum Dot Lasers. Extended Abstracts of the 2004 International Conference on Solid State Devices and Materials.
Liu HY, Sellers IR, Gutierrez M, Groom KM, Soong WM, Hopkinson M, David JPR, Beanland R, Badcock TJ, Mowbray DJ & Skolnick MS (2004) Influences of the spacer layer growth temperature on multilayer InAs/GaAs quantum dot structures. J APPL PHYS, 96(4), 1988-1992.
Liu HY, Sellers IR, Badcock TJ, Mowbray DJ, Skolnick MS, Groom KM, Gutierrez M, Hopkinson M, Ng JS, David JPR & Beanland R (2004) Improved performance of 1.3 mu m multilayer InAs quantum-dot lasers using a high-growth-temperature GaAs spacer layer. APPL PHYS LETT, 85(5), 704-706.
Tartakovskii AI, Cahill J, Makhonin MN, Whittaker DM, Wells J-PR, Fox AM, Mowbray DJ, Skolnick MS, Groom KM, Steer MJ & Hopkinson M (2004) Dynamics of coherent and incoherent spin polarizations in ensembles of quantum dots.. Phys Rev Lett, 93(5), 057401.
Tartakovskii AI, Groom KM, Adawi AM, Lemaitre A, Fox AM, Mowbray DJ, Skolnick MS & Hopkinson M (2002) Dynamics of stimulated emission in InAs quantum-dot laser structures measured in pump-probe experiments. APPL PHYS LETT, 81(22), 4118-4120.
Groom KM, Tartakovskii AI, Mowbray DJ, Skolnick MS, Smowton PM, Hopkinson M & Hill G (2002) Comparative study of InGaAs quantum dot lasers with different degrees of dot layer confinement. APPL PHYS LETT, 81(1), 1-3.
Tartakovskii AI, Groom KM, Lemaître A, Adawi AM, Fox AM, Mowbray DJ, Skolnick MS & Steer MJ (2002) Staircase-like dynamics of stimulated emission in InAs quantum dot amplifiers. Conference on Quantum Electronics and Laser Science (QELS) - Technical Digest Series, 74, 178-179.
Herrmann E, Smowton PM, Ning Y, Groom KM, Mowbray DJ & Hopkinson M (2001) Performance of lasers containing three, five and seven layers of quantum dots. IEE P-OPTOELECTRON, 148(5-6), 238-242.
Groom KM, Wilson LR, Mowbray DJ, Skolnick MS, Hill G, Steer MJ & Hopkinson M (2001) Electrically pumped InGaAs quantum dot ring and cylindrical cavity lasers. ELECTRON LETT, 37(20), 1220-1222.
Groom KM, Ashmore AD, Mowbray DJ, Skolnick MS, Hopkinson M, Hill G, Clark J & Smowton PM (2001) Optical spectroscopic study of carrier processes in self-assembled In(Ga)As-Ga(Al)As quantum dot lasers. PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 224(1), 123-127.
Warburton RE, Pellegrini S, Tan L, Ng JS, Krysa A, Groom K, David JPR, Cova S & Buller GS () Design, fabrication and characterisation of InGaAs/InP single-photon avalanche diode detectors.
Alsaddah M, Khan A, Groom K & Mumtaz K () Use of 450-808 nm diode lasers for efficient energy absorption during powder bed fusion of Ti6Al4V. The International Journal of Advanced Manufacturing Technology.

Conference proceedings papers

Mashanovich GZ, Wei C, McQuillan S, Ismaeel R, Lack N, Hu T, Zhou L, Groom KM, Heffernan J, Patey MD , Cardwell CL et al (2024) Silicon photonics mid-infrared devices and sensors. Smart Photonic and Optoelectronic Integrated Circuits 2024, 27 January 2024 - 1 February 2024.
Rowe DJ, Reid L, Wei C, Stirling CJ, Mitchell CJ, Du H, Yan X, Tran DT, Wu Y, Banakar M , Qi Y et al (2023) Group IV Mid-Infrared Photonic Devices and Applications. 2023 23rd International Conference on Transparent Optical Networks (ICTON), 2 July 2023 - 6 July 2023.
Mitchell CJ, Osman A, Li K, Panades JS, Nedeljkovic M, Zhou L, Groom KM, Heffernan J & Mashanovich GZ (2023) Hybrid laser integration in the mid-IR for silicon photonics sensing applications. Silicon Photonics XVIII, 28 January 2023 - 3 March 2023.
Mashanovich GZ, Reid L, Georgiev G, Wei C, Qi Y, Stirling CJ, Osman A, Wu Y, Qu Z, Heffernan J , Groom KM et al (2022) Group IV mid-infrared photonics for communications and sensing. Integrated Optics: Devices, Materials, and Technologies XXVI, 22 January 2022 - 28 February 2022.
Groom KM (2020) Multi-laser processing for high-speed powder bed additive manufacturing and opportunities for photonic integration. SPIE Photonex Industry Talks, 5 October 2020 - 9 October 2020.
Ghazal OMS, Groom KM, Stevens BJ, Babazadeh N, Childs DTD & Hogg RA (2019) High-power gaas-based superluminescent diodes employing window-like facets for low spectral modulation. Proceedings 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, CLEO/Europe-EQEC 2015
Groom K, Matcher SJ, Freer S & Revin D (2018) Towards swept-source mid-infrared OCT. Biophotonics: Photonic Solutions for Better Health Care VI, 22 April 2018 - 26 April 2018.
Goldberg GR, Ivanov P, Ozaki N, Childs DTD, Groom KM, Kennedy KL & Hogg RA (2017) Gallium nitride light sources for optical coherence tomography. Gallium Nitride Materials and Devices XII
Guan G, Lu ZH, Hirsch M, Goodridge R, Childs DTD, Matcher SJ, Clare AT & Groom KM (2016) Towards in-situ process monitoring in selective laser sintering using optical coherence tomography. Laser 3D Manufacturing III View this article in WRRO
Ghazal OMS, Lei D, Childs DT, Stevens BJ, Babazadeh N, Hogg RA & Groom KM (2016) GaAs-based self-aligned stripe superluminescent diodes processed normal to the cleaved facet. Novel In-Plane Semiconductor Lasers XV
Tooley IG, Childs DTD, Stevens BJ, Groom KM & Hogg RA (2016) Simulation of broad spectral bandwidth emitters at 1060 nm for optical coherence tomography. Novel In-Plane Semiconductor Lasers XV
Childs DTD, Hogg RA, Groom KM, Revin DG, Rehman IU, Cockburn JW & Matcher SJ (2016) Rigorous comparison of the spectral SNR of FTIR and EC-QCL spectroscopy (Conference Presentation). Biomedical Vibrational Spectroscopy 2016: Advances in Research and Industry, 13 February 2016 - 18 February 2016.
Childs DTD, Groom KM, Hogg RA, Revin DG, Cockburn JW, Rehman IU & Matcher SJ (2016) High-speed high-sensitivity infrared spectroscopy using mid-infrared swept lasers (Conference Presentation). High-Speed Biomedical Imaging and Spectroscopy: Toward Big Data Instrumentation and Management, 13 February 2016 - 18 February 2016.
Ghazal OMS, Groom KM, Stevens BJ, Babazadeh N, Childs DTD & Hogg RA (2015) High-power gaas-based superluminescent diodes employing window-like facets for low spectral modulation. Proceedings 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, CLEO/Europe-EQEC 2015
Ghazal OMS, Groom KM, Stevens BJ, Babazadeh N, Childs DTD & Hogg RA (2015) High-power gaAs-based superluminescent diodes employing window-like facets for low spectral modulation. Optics InfoBase Conference Papers
Taylor RJE, Childs DTD, Crombie A, Stevens BJ, Ivanov PS, Babazadeh N, Groom KM, Shepherd L, Ternent G, Thoms S , Zhou H et al (2014) Coherently Coupled Photonic Crystal Surface Emitting Lasers. 2014 International Semiconductor Laser Conference, 7 September 2014 - 10 September 2014.
Groom OMSGKM, Stevens BJ, Babazadeh N, Childs DTD & Hogg RA (2014) GaAs Based Superluminescent Diodes Employing Window Facets in a Self-Aligned Stripe. 2014 International Semiconductor Laser Conference, 7 September 2014 - 10 September 2014.
Ghazal OMS, Groom KM, Stevens BJ, Babazadeh N, Childs DTD & Hogg RA (2014) High-power gaAs-based superluminescent diodes employing window-like facets for low spectral modulation. Optics InfoBase Conference Papers
Ghazal OMS, Groom KM, Stevens BJ, Babazadeh N, Childs DTD, Hogg RA & Soc IEEEC (2014) GaAs-based Superluminescent Diodes Employing Window Facets in a Self-Aligned Stripe. 2014 24TH IEEE INTERNATIONAL SEMICONDUCTOR LASER CONFERENCE (ISLC 2014) (pp 175-176)
Taylor RJE, Childs DTD, Crombie A, Stevens BJ, Ivanov PS, Babazadeh N, Groom KM, Shepherd L, Ternent G, Thoms S , Zhou H et al (2014) Coherently Coupled Photonic Crystal Surface Emitting Lasers. 2014 24TH IEEE INTERNATIONAL SEMICONDUCTOR LASER CONFERENCE (ISLC 2014) (pp 213-214)
Taylor RJE, Williams DM, Shepherd LR, Childs DTD, Stevens BJ, Khamas S, Groom KM, Hogg RA, Ikeda N & Sugimoto Y (2013) Photonic crystal surface emitting lasers based on epitaxial regrowth. Pacific Rim Conference on Lasers and Electro-Optics, CLEO - Technical Digest
Taylor RJE, Williams DM, Groom KM, Childs DTD, Stevens BJ, Roberts T, Khamas S, Hogg RA, Ikeda N & Sugimoto Y (2012) Photonic crystal surface emitting lasers based on epitaxial regrowth. Conference Digest - IEEE International Semiconductor Laser Conference (pp 167-168)
Williams DM, Groom KM, Childs DTD, Stevens BJ, Khamas S, Roberts TS, Taylor RJE, Hogg RA, Ikeda N & Sugimoto Y (2012) Realization of a photonic crystal surface emitting laser through GaAs based regrowth. Proceedings of SPIE - The International Society for Optical Engineering, Vol. 8255
Williams DM, Groom KM, Stevens BJ, Jiang Q, Childs DTD, Taylor RJ, Khamas S, Hogg RA, Ikeda N & Sugimoto Y (2011) Epitaxially regrown GaAs based photonic crystal surface emitting laser. IEEE Photonic Society 24th Annual Meeting, PHO 2011 (pp 705-706)
Williams DM, Groom KM, Stevens BJ, Jiang Q, Childs DTD, Taylor RJ, Khamas S, Hogg RA, Ikeda N & Sugimoto Y (2011) Epitaxially regrown GaAs based photonic crystal surface emitting laser. IEEE Photonic Society 24th Annual Meeting, PHO 2011 (pp 705-706)
Majid MA, Childs DTD, Chen S, Groom KM, Kennedy K, Airey R, Hogg RA, Clarke E, Spencer P & Murray R (2010) Gain spectra analysis of bilayer quantum dot lasers beyond 1.3μm. 2010 Photonics Global Conference, PGC 2010
Spencer P, Shi J, Clarke E, Murray R, Majid M, Childs D, Alexander R, Groom K & Hogg R (2010) Dual-state lasing and the case against the phonon bottleneck. Proceedings of SPIE - The International Society for Optical Engineering, Vol. 7616
Groom KM, Stevens BJ, Greenwood PDL, Childs DTD, Roberts JS, Lomas M, Hugues M, Shahid H & Hogg R (2010) A platform for GaAs opto-electronic integrated circuits based on GaAs/AlGaAs regrowth upon patterned InGaP. Proceedings of SPIE - The International Society for Optical Engineering, Vol. 7616
Stevens BJ, Groom KM, Childs DTD, Roberts JS & Hogg RA (2009) Buried inGaP/GaAs grating Distributed Feedback laser with AlGaAs cladding. Optics InfoBase Conference Papers
Stevens BJ, Groom KM, Childs DTD, Roberts JS & Hogg RA (2009) Buried InGaP/GaAs grating distributed feedback laser with AlGaAs cladding. CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference, 14 June 2009 - 19 June 2009.
Hogg RA, Greenwood PDL, Childs DTD, Krstajic N, Kennedy K, Groom KM, Hugues M, Hopkinson M, Smith LE, Matcher SJ , Bonesi M et al (2009) GaAs Based Quantum Dot Superluminescent Diodes for Optical Coherence Tomography of Skin Tissue. 2009 4TH INTERNATIONAL CONFERENCE ON COMPUTERS AND DEVICES FOR COMMUNICATION (CODEC 2009) (pp 426-431)
Groom KM, Stevens BJ, Greenwood PDL, Childs DTD, Roberts JS, Kennedy K, Fry PW & Hogg RA (2009) A Platform for GaAs Opto-Electronic Integrated Circuits Based on GaAs/AlGaAs Overgrowth of Patterned InGaP. 2009 IEEE LEOS ANNUAL MEETING CONFERENCE PROCEEDINGS, VOLS 1AND 2 (pp 213-214)
Greenwood PDL, Jiang Q, Childs DTD, Zhang Z, Groom KM, Kennedy K, Hugues M, Hopkinson M & Hogg RA (2009) Broad-band High Power Quantum Dot Superluminescent Diodes. 2009 IEEE LEOS ANNUAL MEETING CONFERENCE PROCEEDINGS, VOLS 1AND 2 (pp 604-605)
Krstajic N, Smallwood R, Childs DTD, Greenwood PDL, Hugues M, Kennedy K, Hopkinson M, Groom KM, Hogg RA, Smith LE , Matcher SJ et al (2009) Optical coherence tomography with high power quantum-dot superluminescent diodes. 2009 IEEE LEOS ANNUAL MEETING CONFERENCE PROCEEDINGS, VOLS 1AND 2 (pp 207-208)
Stevens BJ, Groom KM, D. Childs DT, Alexander RR, Roberts JS, Helmy AS & Hogg RA (2008) GaAs-based Self-Aligned Laser Incorporating an InGaP Opto-Electronic Confinement Layer. Extended Abstracts of the 2008 International Conference on Solid State Devices and Materials, 23 September 2008 - 26 September 2008.
Jin CY, Liu HY, Badcock TJ, Groom KM, Mowbray DJ, Hopkinson M & Wada O (2008) Novel, Simple Model for High Temperature Stability of InAs/GaAs Self-assembled Quantum Dot Lasers with Optimum p-type Modulation Doping. Extended Abstracts of the 2008 International Conference on Solid State Devices and Materials, 23 September 2008 - 26 September 2008.
L. Judson PD, Groom KM, D. Childs DT, Hopkinson M, Krstajic N & Hogg RA (2008) Tuning Superluminescent Diode Characteristics for Optical Coherence Tomography Systems by Utilising a Multi-Contact Device Incorporating Chirped Quantum Dots. Extended Abstracts of the 2008 International Conference on Solid State Devices and Materials, 23 September 2008 - 26 September 2008.
D. Childs DT, Stevens BJ, Groom KM, Hopkinson M & Hogg RA (2008) Two Section Quantum Dot Lasers for Tuning and Modulation. Extended Abstracts of the 2008 International Conference on Solid State Devices and Materials, 23 September 2008 - 26 September 2008.
Groom KM, Alexander RR, Childs DTD, Krysa AB, Roberts JS, Helmy AS & Hogg RA (2008) GaAs-based buried heterostructure laser incorporating an InGaP opto-electronic confinement layer. Optics InfoBase Conference Papers
Groom KM, Alexander RR, Childs DTD, Krysa AB, Roberts JS, Helmy AS & Hogg RA (2008) GaAs-based buried heterostructure laser incorporating an InGaP opto-electronic confinement layer. Optics InfoBase Conference Papers
Judson PDL, Groom KM, Childs DTD, Hopkinson M & Hogg RA (2008) multi-contact quantum dot superluminescent diodes for optical coherence tomography. 2008 IEEE PhotonicsGlobal at Singapore, IPGC 2008
Liu HY, Hopkinson M, Groom K, Hogg RA & Mowbray DJ (2008) High-performance 1300-nm InAs/GaAs quantum-dot lasers. Proceedings of SPIE - The International Society for Optical Engineering, Vol. 6909
Groom KM, Alexander RR, Childs DTD, Krysa AB, Roberts JS, Helmy AS & Hogg RA (2008) GaAs-based buried heterostructure laser incorporating an InGaP opto-electronic confinement layer. 2008 Conference on Quantum Electronics and Laser Science Conference on Lasers and Electro-Optics, CLEO/QELS
Judson PDL, Groom KM, Childs DTD, Hopkinson M & Hogg RA (2008) Multi-Contact Quantum Dot Superluminescent Diodes for Optical Coherence Tomography. 2008 IEEE PHOTONICSGLOBAL@SINGAPORE (IPGC), VOLS 1 AND 2 (pp 104-106)
Childs DTD, Stevens BJ, Groom KM, Hopkinson M & Hogg RA (2008) Tuning and Modulation in Two Section Quantum Dot Lasers. 2008 IEEE PHOTONICSGLOBAL@SINGAPORE (IPGC), VOLS 1 AND 2 (pp 93-96)
Groom KM, Assamoi PJ, Hugues M, Roberts JS, Stevens BJ, Childs DTD, Alexander RR, Hopkinson M & Hogg RA (2008) 1.3 mu m Quantum Dot Self-Aligned Stripe Laser. 2008 IEEE PHOTONICSGLOBAL@SINGAPORE (IPGC), VOLS 1 AND 2 (pp 97-100)
Childs DTD, Stevens BJ, Groom KM, Hopkinson M & Hogg RA (2008) Two Section Quantum Dot Devices for Tuning and Modulation. 2008 IEEE 21ST INTERNATIONAL SEMICONDUCTOR LASER CONFERENCE (pp 109-110)
Groom KM, Alexander RR, Childs DTD, Krysa AB, Roberts JS, Helmy AS & Hogg RA (2008) GaAs-Based Buried Heterostructure Laser Incorporating an InGaP Opto-Electronic Confinement Layer. 2008 CONFERENCE ON LASERS AND ELECTRO-OPTICS & QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE, VOLS 1-9 (pp 2177-2178)
Groom KM, Stevens BJ, Childs DTD, Alexander RR, Roberts JS, Helmy AS & Hogg RA (2008) GaAs-Based Self-Aligned Laser Incorporating an InGaP Opto-Electronic Confinement Layer. 2008 IEEE 21ST INTERNATIONAL SEMICONDUCTOR LASER CONFERENCE (pp 97-98)
Judson PDL, Groom KM, Childs DTD, Hopkinson M, Krstajic N & Hogg RA (2008) Multi-Contact Quantum Dot Superluminescent Diodes for Optical Coherence Tomography. 2008 IEEE 21ST INTERNATIONAL SEMICONDUCTOR LASER CONFERENCE (pp 107-108)
Jin CY, Liu HY, Groom KM, Hopkinson M, Badcock TJ, Royce RJ & Mowbray DJ (2007) Photon coupling mechanism in 1.3-μm quantum-dot lasers. Conference on Lasers and Electro-Optics, 2007, CLEO 2007
Taboada AG, Suárez F, Granados D, Badcock TJ, Mowbray DJ, Groom KM, Alén B, García JM & Dotor ML (2007) Electro-optical characterization of self-assembled InAs/GaAs quantum rings embedded in P-i-N and Schottky diodes. AIP Conference Proceedings, Vol. 893 (pp 909-910)
Alexander RR, Childs D, Agarwal H, Groom KM, Liu HY, Hopkinson M, Hogg RA, Badcock TJ, Mowbray DJ, Skolnick MS , Ishida M et al (2007) Systematic study of the effects of δ-p-doping on 1.3μm Dot-in-well lasers. Conference on Lasers and Electro-Optics Europe - Technical Digest
Blazek M, Breuer S, Gensty T, Elsäßer WE, Hopkinson M, Groom KM, Calligaro M, Resneau P & Krakowski M (2007) Intensity noise of ultrabroadband Quantum Dot Light Emitting Diodes and Lasers at 1.3 μm. Proceedings of SPIE - The International Society for Optical Engineering, Vol. 6603
Jin CY, Liu HY, Groom KM, Hopkinson M, Badcock TJ, Royce RJ & Mowbray DJ (2007) Photon Coupling Mechanism in 1.3-mu m Quantum-Dot Lasers. 2007 CONFERENCE ON LASERS & ELECTRO-OPTICS/QUANTUM ELECTRONICS AND LASER SCIENCE CONFERENCE (CLEO/QELS 2007), VOLS 1-5 (pp 2340-2341)
Mowbray D, Badcock T, Sellers I, Ramsay A, Skolnick M, Liu HY, Hopkinson M, Groom K, Hogg R, Beanland R , Childs D et al (2007) Growth and characterization of multi-layer 1.3 mu m quantum dot lasers. INTERNATIONAL JOURNAL OF NANOSCIENCE, VOL 6, NOS 3 AND 4, Vol. 6(3-4) (pp 291-296)
Alexander RR, Childs D, Agarwal H, Groom KM, Liu HY, Hopkinson M, Hogg RA, Ishida M, Yamamoto T, Sugawara M , Arakawa Y et al (2007) Systematic study of the effects of modulation p-doping on 1.3 mu m InAs/GaAs dot-in-well lasers. 2007 International Conference on Indium Phosphide and Related Materials, Conference Proceedings (pp 517-520)
Choi TL, Ray SK, Zhang Z, Childs D, Groom KM, Stevens BJ, Liu H, Hopkinson M & Hogg RA (2007) Quantum dot superluminescent diodes - Bandwidth engineering and epitaxy for high powers. 2007 International Conference on Indium Phosphide and Related Materials, Conference Proceedings (pp 289-292)
Jin CY, Liu HY, Badcock TJ, Groom KM, Gutierrez M, Royce R, Hopkinson M & Mowbray DJ (2006) High-performance 1.3 mu m InAs/GaAs quantum-dot lasers with low threshold current and negative characteristic temperature. IEE PROCEEDINGS-OPTOELECTRONICS, Vol. 153(6) (pp 280-283)
Kennedy K, Revin DG, Krysa AB, Groom KM, Wilson LR, Cockburn JW & Hogg RA (2006) InP-Based Quantum Cascade Lateral Grating Distributed Feedback Lasers. Extended Abstracts of the 2006 International Conference on Solid State Devices and Materials, 12 September 2006 - 15 September 2006.
Young RJ, Stevenson RM, Shields AJ, Atkinson P, Cooper K, Ritchie DA, Groom KM, Tartakovskii AI & Skolnick MS (2006) Inversion of the exciton fine structure splitting in quantum dots. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Vol. 32(1-2) (pp 97-100)
Warburton RE, Pellegrini S, Tan L, Ng JS, Krysa A, Groom K, David JPR, Cova S & Buller GS (2006) Design, fabrication and characterisation of InGaAs/InP single-photon avalanche diode detectors. Optics InfoBase Conference Papers
Zibik EA, Ng WH, Soulby MR, Wilson LR, Cockburn JW, Colley CS, Hebden JC, Delpy DT, Groom KM & Hopkinson M (2006) Broadband quantum cascade lasers and superluminescent diodes. Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, CLEO/QELS 2006
Ray SK, Alexander R, Kennedy K, Groom KM, Liu HY, Hopkinson M & Hogg RA (2006) Design, fabrication, and operating characteristics of broadband quantum dot superluminescent diodes. Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, CLEO/QELS 2006
Groom KM, Ray SK, Alexander RR, Choi T, Kennedy K, Liu H, Hopkinson M & Hogg RA (2006) High-power and broad-band quantum dot SLDs for optical coherence tomography. Conference Digest - IEEE International Semiconductor Laser Conference (pp 47-48)
Kennedy K, Revin DG, Krysa AB, Groom KM, Wilson LR, Cockburn JW & Hogg RA (2006) InP-based quantum cascade distributed feedback lasers with deeply etched lateral gratings. Conference Digest - IEEE International Semiconductor Laser Conference (pp 61-62)
Liu HY, Badcock TJ, Groom KM, Hopkinson M, Gutierrez M, Childs DT, Jin C, Hogg RA, Sellers IR, Mowbray DJ , Skolnick MS et al (2006) High-performance 1.3-mu m InAs/GaAs quantum-dot lasers with low threshold current and negative characteristic temperature - art. no. 618417. Semiconductor Lasers and Laser Dynamics II, Vol. 6184 (pp 18417-18417)
Ray SK, Groom KM, Beattie MD, Liu HY, Hopkinson M & Hogg RA (2006) Broad-band superluminescent light emitting diodes incorporating quantum dots in compositionally modulated quantum wells - art. no. 612907. Quantum Dots, Particles, and Nanoclusters III, Vol. 6129 (pp 12907-12907)
Liu HY, Sellers IR, Gutierrez M, Groom KM, Beanland R, Soong WM, Hopkinson M, David JPR, Badcock TJ, Mowbray DJ & Skolnick MS (2005) Optimizing the growth of 1.3-mu m InAs/InGaAs dots-in-a-well structure: Achievement of high-performance laser. MATERIALS SCIENCE & ENGINEERING C-BIOMIMETIC AND SUPRAMOLECULAR SYSTEMS, Vol. 25(5-8) (pp 779-783)
Liu HY, Badcock TJ, Sellers IR, Soong WM, Groom KM, Hopkinson M, Mowbray DJ & Skolnick MS (2005) Enhanced photoluminescence intensity of 1.3-mu m multi-layer InAs/InGaAs dots-in-well structure using the high growth temperature spacer layer step. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Vol. 26(1-4) (pp 129-132)
Sellers IR, Liu HY, Badcock TJ, Groom KM, Mowbray DJ, Gutierrez M, Hopkinson M & Skolnick MS (2005) Lasing and spontaneous emission characteristics of 1.3 mu m In(Ga)As quantum-dot lasers. PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, Vol. 26(1-4) (pp 382-385)
Marko IP, Masse N, Sweeney SJ, Adams AR, Sellers IR, Mowbray DJ, Skolnick MS, Liu HY, Groom KM & IEEE (2005) Effect of gain saturation and nonradiative recombination on the thermal characteristics of InAs/GaAs 1.3 mu m quantum dot lasers. 2005 IEEE LEOS Annual Meeting Conference Proceedings (LEOS) (pp 401-402)
Marko IP, Masse N, Sweeney SJ, Adams AR, Sellers IR, Mowbray DJ, Skolnick MS, Liu HY & Groom KM (2005) Effect of gain saturation and nonradiative recombination on the thermal characteristics of InAs/GaAs 1.3 μm quantum dot lasers. Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS, Vol. 2005 (pp 402-403)
Sellers IR, Liu HY, Mowbray DJ, Badcock TJ, Groom KM, Hopkinson M, Gutierrez M, Skolnick MS, Beanland R, Childs DT & Robbins DJ (2005) Growth and characterization of 1.3 mu m multi-layer quantum dots lasers incorporating high growth temperature spacer layers. Physics of Semiconductors, Pts A and B, Vol. 772 (pp 1547-1548)
Tartakovskii A, Cahill J, Whittaker D, Wells J-P, Fox M, Mowbray D, Skolnick M, Groom K, Steer M & Hopkinson M (2004) Long-lived spin coherence and temperature-induced dephasing in InAs quantum dots measured via quantum beats. Conference on Lasers and Electro-Optics/International Quantum Electronics Conference and Photonic Applications Systems Technologies, 2004.
Tartakovsk AI, Cahill J, Whittaker DM, Wells JPR, Fox AM, Mowbray DJ, Skolnick MS, Groom KM, Steer MJ & Hopkinson M (2004) Long-lived spin coherence and temperature-induced dephasing in InAs quantum dots measured via quantum beats. OSA Trends in Optics and Photonics Series, Vol. 97 (pp 667-668)
Marko IP, Adams AR, Sweeney SJ, Sellers IR, Mowbray DJ, Skolnick MS, Liu HY & Groom KM (2004) Recombination and loss mechanisms in low-threshold InAs/GaAs 1.3 μm quantum dot lasers. Conference Digest - IEEE International Semiconductor Laser Conference (pp 57-58)
Tartakovskii AI, Groom KM, Adawi AM, Lemaitre A, Mowbray DJ, Skolnick MS & Hopkinson M (2004) Dynamics of stimulated emission in InAs quantum dot laser structures measured in pump-probe experiments. ULTRAFAST PHENOMENA IN SEMICONDUCTORS AND NANOSTRUCTURE MATERIALS VIII, Vol. 5352 (pp 348-354)

Patents

Groom KM (2010) Semiconductor light source and method of fabrication thereof. GB2471266 (national/regional). Appl. 29 Dec 2010.

Preprints

Warburton RE, Pellegrini S, Tan L, Ng JS, Krysa A, Groom K, David JPR, Cova S & Buller GS (2006) Design, fabrication and characterisation of InGaAs/InP single-photon avalanche diode detectors, arXiv.
Pellegrini S, Warburton RE, Tan LJJ, Ng JS, Krysa AB, Groom K, David JPR, Cova S, Robertson MJ & Buller GS (2006) Design and Performance of an InGaAs-InP Single-Photon Avalanche Diode Detector, arXiv.
Young RJ, Stevenson RM, Shields AJ, Atkinson P, Cooper K, Ritchie DA, Groom KM, Tartakovskii AI & Skolnick MS (2006) Inversion of exciton level splitting in quantum dots, arXiv.

Teaching activities

EEE118 Electronic Devices & Circuits
EEE6214 Packaging & Reliability of Microsystems

Professional activities and memberships

Senior Lecturer
TUoS Manufacturing Research Board member
EEE Estates Committee member
Nanoscience Management Committee member

Research students

Student	Degree	Status	Primary/Secondary
Ghazal O M S	PhD	Graduated	Primary
Greenwood P D L	PhD	Graduated	Primary
Lei H	PhD	Graduated	Primary
Peyvast N	PhD	Graduated	Primary
Jin Xiao	PhD	Graduated	Secondary
Li Wei	PhD	Graduated	Secondary
Qian H	PhD	Graduated	Secondary
Stevens B J	PhD	Graduated	Secondary
Zavala Arredondo M A	PhD	Graduated	Secondary

Department of Electronic and Electrical Engineering

Department of Electronic and Electrical Engineering

Dr Kristian Groom

Journal articles

Conference proceedings papers

Patents

Preprints

Links