Photonics and Biophotonics
Photonics is of ever increasing importance impacting on a huge range of applications and has 20% of UK based physicists employed in this sector.
The impact of photonics can be found on almost every application from cancer detection and cure to anti-personnel mine clearing or speeding-up your computer processor.
The activity of our research unit includes fundamental work on light matter interactions, the physics of gain and recombination in quantum confined structures and also embraces colloidal dots and collaborations with medicine and bioscience, all ultimately leading to device and measurement applications.
Our current interrelated topics include Biophotonics, Integrated Optoelectronics, Nanophotonics, and the physics of ensembles of quantum dots and of individual dots and their environment (colloidal and epitaxial).
Projects
- Green photonics: Silicon based QD light sources
- Green Photonics: High Power Quantum Well and Quantum Dot Lasers
- Living laser and Optical Biochip
- The Physics of InAs Quantum Dot Lasers
- InP Quantum Dot Lasers
- InGa(Al)N quantum well heterostructures
- Cavity Quantum Electrodynamics with Quantum Dots
- Excitons and microcavity polaritons in coupled quantum wells
- Indirect excitons: Transport and thermalisation dynamics, photoluminescence patterns and blue shift
- Resonant Acousto-optics and Acousto-plasmonics
- Dephasing in Quantum Dots
- Coherence and Coupling of Single Quantum Dots
- Coherent Antistokes Raman Scattering (CARS) micro-spectroscopy: Technology development and life-science applications
- Numerical modelling of Optical Biosensors
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Staff academaidd
Research units
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An InGaN QW LED: this structure was grown at III-V Centre at Sheffield University and processed in the cleanroom in Cardiff. The structure was RIE etched to produce the mesa and then n and p type contacts were made to the sample. In a similar manner laser and multisection devices have been fabricated using structures grown at Sheffield University.