Coherent Exciton Lasing in ZnSe/ZnCdSe Quantum Wells?

M E Flatté; E Runge; H Ehrenreich

doi:10.1063/1.113226

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Coherent Exciton Lasing in ZnSe/ZnCdSe Quantum Wells?

Journal article

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Coherent Exciton Lasing in ZnSe/ZnCdSe Quantum Wells?

M E Flatté, E Runge and H Ehrenreich

Applied physics letters, Vol.66(11), pp.1313-1315

02/01/1995

DOI: 10.1063/1.113226

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https://arxiv.org/pdf/cond-mat/9502001View

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Abstract

A new mechanism for exciton lasing in ZnSe/ZnCdSe quantum wells is proposed. Lasing, occurring below the lowest exciton line, may be associated with a BCS‐like condensed (coherent) exciton state. This state is most stable at low temperatures for densities in the transition region separating the exciton Bose gas and the coherent exciton state. Calculations show the gain region to lie below the exciton line and to be separated from the absorption regime by a transparency region of width, for example, about 80 meV for a 90 Å ZnSe/Zn0.75Cd0.25Se quantum well. Experimental observation of the transparency region using differential spectroscopy would confirm this picture.

Physics - Disordered Systems and Neural Networks

Physics - Materials Science

Physics - Mesoscale and Nanoscale Physics

Physics - Other Condensed Matter

Physics - Quantum Gases

Physics - Soft Condensed Matter

Physics - Statistical Mechanics

Physics - Strongly Correlated Electrons

Physics - Superconductivity

Details

Title: Subtitle: Coherent Exciton Lasing in ZnSe/ZnCdSe Quantum Wells?
Creators: M E Flatté
E Runge
H Ehrenreich
Resource Type: Journal article
Publication Details: Applied physics letters, Vol.66(11), pp.1313-1315
DOI: 10.1063/1.113226
ISSN: 0003-6951
eISSN: 1077-3118
Publisher: AIP Publishing
Language: English
Date published: 02/01/1995
Academic Unit: Electrical and Computer Engineering; Physics and Astronomy
Record Identifier: 9984428663902771

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