EPSRC logo

Details of Grant 

EPSRC Reference: GR/S09838/01
Title: New Polariton Phenomena in Semiconductor Microcavities
Principal Investigator: Skolnick, Professor M
Other Investigators:
Lidzey, Professor D Parbrook, Professor P Whittaker, Professor DM
Hopkinson, Professor M Fox, Dr M Mowbray, Professor D
Fox, Professor AM
Researcher Co-Investigators:
Project Partners:
Department: Physics and Astronomy
Organisation: University of Sheffield
Scheme: Standard Research (Pre-FEC)
Starts: 20 May 2003 Ends: 19 November 2006 Value (£): 387,701
EPSRC Research Topic Classifications:
Optoelect. Devices & Circuits
EPSRC Industrial Sector Classifications:
Electronics No relevance to Underpinning Sectors
Related Grants:
Panel History:  
Summary on Grant Application Form
The proposal requests funds to move the field of polariton physics in strong coupling microcavities into new highly promising directions. Major new opportunities arise as a result of recent advances in microcavity physics we have achieved, and as a result of the novel features of polariton excitations in microcavities. The key features of polaritons include their bosonic character, stimulated scattering, very light mass leading to very high critical temperatures for condensation, ease in reaching quantum degeneracy and direct coupling to external photons. These key properties open up major opportunities for new physics (boson-condensation, state with macroscopic coherence) and new generations of devices including a new form of coherent light source, the polariton laser, very high gain amplifiers and triply resonant frequency converters. The research will be carried out on high quality GaAs structures to investigate new phenomena particularly in coupled cavities, and on high exciton oscillator strength, high exciton binding energy GaN and organic systems. The high oscillator strength, high exciton binding energy systems are likely to enable much new physics as a result of their high stability to screening and ionisation, and importantly will enable observation of the phenomena at substantially higher temperatures up to and including room temperature.The proposal requests funds to move the field of polariton physics in strong coupling microcavities into new highly promising directions. Major new opportunities arise as a result of recent advances in microcavity physics we have achieved, and as a result of the novel features of polariton excitations in microcavities. The key features of polaritons include their bosonic character, stimulated scattering, very light mass leading to very high critical temperatures for condensation, ease in reaching quantum degeneracy and direct coupling to external photons. These key properties open up major opportunities for new physics (boson-condensation, state with macroscopic coherence) and new generations of devices including a new form of coherent light source, the polariton laser, very high gain amplifiers and triply resonant frequency converters. The research will be carried out on high quality GaAs structures to investigate new phenomena particularly in coupled cavities, and on high exciton oscillator strength, high exciton binding energy GaN and organic systems. The high oscillator strength, high exciton binding energy systems are likely to enable much new physics as a result of their high stability to screening and ionisation, and importantly will enable observation of the phenomena at substantially higher temperatures up to and including room temperature.
Key Findings
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Potential use in non-academic contexts
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Impacts
Description This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Summary
Date Materialised
Sectors submitted by the Researcher
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
Project URL:  
Further Information:  
Organisation Website: http://www.shef.ac.uk