Dr Andrew Maiden

EEE Staff Dr A Maiden

Contact Details

a.maiden@sheffield.ac.uk

Tel: +44 (0)114 22 25181

ORCHID: 0000-0002-8192-8235

Qualifications

  • PhD, University of Durham 2005
  • MEng (Electronic & Electrical Engineering), University of Birmingham 2001

Research Activities

  • Coherent Diffractive Imaging (CDI)
  • Ptychography
  • Computer-generated holography
  • Phase imaging in the Transmission Electron Microscope (TEM)
  • Inverse problems
  • Image processing

Responsibilities

  • Lecturer
  • Teaching: EE335 (integrated electronics) and EEE6231 (optical imaging systems)
  • Postgraduate Research Admissions Tutor
Profile

I’m interested in computational optics – enhancing optical systems such as microscopes, cameras or projectors with computer code.

My interest began with my PhD at Durham University, where I used computer modelling of the way light propagates to design digital holograms. The holograms were printed out and projected a 3D pattern of circuitry when illuminated with a laser. We used these projected patterns to expose photoresist for the manufacture of volumetric integrated circuits and 3D antennas.

I spent a year living in the Lake District (where I grew up) after my PhD. I got to indulge my passion for outdoor sports – rock climbing, fell running and triathlon – whilst I was there, so when I decided to return to academia Sheffield was a natural choice, being a very outdoors city with excellent Universities.
I moved to Sheffield to work with Prof. John Rodenburg and was lucky enough to join him in the pioneering days of a computational optics technique called ptychography (pronounced tie-cog- ra-fee).
Ptychography uses diffraction pattern measurements to enhance microscopes. It realises ‘perfect’ imaging, where the image of a microscopic specimen it recreates is an exact copy of how that specimen
interacts with a beam of light.

I left Sheffield University for a brief spell to work with a spin-out company on commercialisation of ptychography-enhanced microscopes. I missed the freedom of the academic environment, and returned as a Lecturer after a couple of years. As well as my continuing research in computational optics, I now teach analogue electronics to our third years and a hands-on module in optical imaging systems as part of our new two year MSc programme in Bioengineering: Imaging and sensing. I’m also the PhD Admissions Tutor for our Department, so if you’re interested in coming to Sheffield to continue your studies, please get in touch.

Research Projects

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Research Students

Student Degree Status Primary/Secondary
Cao S PhD Graduated Secondary