Abstract
Polaritons are formed when the electromagnetic field couples to excitons in a semiconductor. In their high-quality semiconductor quantum microcavities, Fisher et al. observe an unexpected decrease in the polariton linewidth (the full width at half maximum) near resonance. This paper uses Green's-function methods to show how the exciton linewidth and the cavity losses combine together, and that they can give a polariton linewidth reduced below that of either of its components. The quantum well disorder is described as a spatially varying potential due to both alloy fluctuations and well width variation, which causes the exciton component to become broadened. \textcopyright{} 1996 The American Physical Society.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
