Dr Alistair Brash
School of Mathematical and Physical Sciences
EPSRC Quantum Technologies Research Fellow
a.brash@sheffield.ac.uk
+44 114 222 4546
+44 114 222 4546
F43, Hicks Building
Full contact details
Dr Alistair Brash
School of Mathematical and Physical Sciences
F43
Hicks Building
Hounsfield Road
Sheffield
S3 7RH
School of Mathematical and Physical Sciences
F43
Hicks Building
Hounsfield Road
Sheffield
S3 7RH
- Profile
-
My research focuses on studying light-matter interactions in semiconductor nanostructures at the single particle level. A particular focus is using these interactions to generate quantum states of light, supporting the development of optical quantum technologies such as secure communications, enhanced imaging and sensing and photonic quantum computing.
Key to these goals is understanding and controlling the interactions between the microscopic quantum system and the macroscopic semiconductor environment. By understanding these interactions, we can access new quantum states with greater efficiencies and fidelities, whilst also significantly increasing the operating temperature of the devices.
- Publications
-
Show: Featured publications All publications
Featured publications
Journal articles
- Photon Statistics of Filtered Resonance Fluorescence. Physical Review Letters, 125(4), ---.
- Light Scattering from Solid-State Quantum Emitters: Beyond the Atomic Picture. Physical Review Letters, 123(16), ---.
- High Purcell factor generation of indistinguishable on-chip single photons. Nature Nanotechnology, 13(9), 835-840.
- Phonon-Assisted Population Inversion of a Single InGaAs/GaAs Quantum Dot by Pulsed Laser Excitation. Physical Review Letters, 114(13), ---.
All publications
Journal articles
- Purcell-enhanced single photons at telecom wavelengths from a quantum dot in a photonic crystal cavity. Scientific Reports, 14(1). View this article in WRRO
- Observation of large spontaneous emission rate enhancement of quantum dots in a broken-symmetry slow-light waveguide. npj Quantum Information, 9(1).
- Bright single photon emitters with enhanced quantum efficiency in a two-dimensional semiconductor coupled with dielectric nano-antennas. Nature Communications, 12(1). View this article in WRRO
- Photon Statistics of Filtered Resonance Fluorescence. Physical Review Letters, 125(4), ---.
- Light Scattering from Solid-State Quantum Emitters: Beyond the Atomic Picture. Physical Review Letters, 123(16), ---.
- High Purcell factor generation of indistinguishable on-chip single photons. Nature Nanotechnology, 13(9), 835-840.
- Dynamic vibronic coupling in InGaAs quantum dots. Journal of the Optical Society of America B, 33(7), C115-C122. View this article in WRRO
- Ultrafast depopulation of a quantum dot by LA-phonon-assisted stimulated emission. Physical Review B, 93. View this article in WRRO
- Phonon-Assisted Population Inversion of a Single InGaAs/GaAs Quantum Dot by Pulsed Laser Excitation. Physical Review Letters, 114(13), ---.
- Phonon-Assisted Population Inversion of a Single Quantum Dot. 2015 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO).
- Optical spin initialization and readout with a cavity-coupled quantum dot in an in-plane magnetic field. Physical Review B, 110(23).
- Nanocavity enhanced photon coherence of solid-state quantum emitters operating up to 30 K. Materials for Quantum Technology.
- Cavity-enhanced excitation of a quantum dot in the picosecond regime. New Journal of Physics.
- High-fidelity initialization of long-lived quantum dot hole spin qubits by reduced fine-structure splitting. Physical Review B, 92(12). View this article in WRRO
Chapters
- Ultrafast Manipulation of Excitons and Spins in Quantum Dots, Quantum Dots for Quantum Information Technologies (pp. 325-357). Springer International Publishing
Conference proceedings papers
- Chiral nanophotonic waveguides for spin-based quantum optical devices. International Conference on Metamaterials, Photonic Crystals and Plasmonics (pp 1061)
- Photon Statistics of Filtered Quantum Dot Resonance Fluorescence. 2021 Conference on Lasers and Electro-Optics, CLEO 2021 - Proceedings
- Photon Statistics of Filtered Quantum Dot Resonance Fluorescence. Conference on Lasers and Electro-Optics, 2021.
- Coherent scattering from quantum dots: beyond the atomic picture. Conference on Lasers and Electro-Optics, 2020.
- Photon Statistics of Filtered Quantum Dot Resonance Fluorescence. Frontiers in Optics / Laser Science, 2020.
- Light Scattering from Solid-State Quantum Emitters: Beyond the Atomic Picture. International Conference on Metamaterials, Photonic Crystals and Plasmonics (pp 438-439)
- Bright and Coherent On-Chip Single Photons from a Very High Purcell Factor Photonic Crystal Cavity. Conference on Lasers and Electro-Optics, 2017.
- Phonon-assisted population inversion of a single quantum dot. Conference on Lasers and Electro-Optics Europe - Technical Digest, Vol. 2015-August
- Fast high-fidelity hole spin initialisation in a single quantum dot at zero magnetic field. Conference on Lasers and Electro-Optics Europe - Technical Digest, Vol. 2015-August
- Phonon-Assisted Population Inversion of a Single Quantum Dot. CLEO: 2015, 2015.
- Fast High-Fidelity Hole Spin Initialisation in a Single Quantum Dot at Zero Magnetic Field. CLEO: 2015, 2015.
Datasets
Preprints
- Purcell-Enhanced Single Photons at Telecom Wavelengths from a Quantum Dot in a Photonic Crystal Cavity, arXiv.
- Towards Generating Indistinguishable Photons from Solid-State Quantum
Emitters at Elevated Temperatures.
- Cavity-enhanced excitation of a quantum dot in the picosecond regime, arXiv.
- Observation of large spontaneous emission rate enhancement of quantum dots in a broken-symmetry slow-light waveguide, Research Square Platform LLC.
- Observation of large spontaneous emission rate enhancement of quantum dots in a broken-symmetry slow-light waveguide, arXiv.
- Optical Spin Initialisation and Readout with a Cavity-Coupled Quantum Dot in an In-Plane Magnetic Field, arXiv.
- Bright single photon emitters with enhanced quantum efficiency in a two-dimensional semiconductor coupled with dielectric nano-antennas, arXiv.
- Photon Statistics of Filtered Resonance Fluorescence, arXiv.
- Light Scattering from Solid-State Quantum Emitters: Beyond the Atomic Picture, arXiv.
- High Purcell factor generation of coherent on-chip single photons, arXiv.
- Dynamic vibronic coupling in InGaAs quantum dots, arXiv.
- Ultrafast Depopulation of a Quantum Dot by LA-phonon-assisted Stimulated Emission, arXiv.
- High-fidelity initialization of long-lived quantum dot hole spin qubits by reduced fine-structure splitting, arXiv.
- Photon Statistics of Filtered Resonance Fluorescence. Physical Review Letters, 125(4), ---.