TY - JOUR
T1 - Superradiance of nearly condensed excitons in InAs-GaSb coupled quantum wells
AU - Laikhtman, B.
AU - Shvartsman, L. D.
PY - 2005/12/15
Y1 - 2005/12/15
N2 - We suggest a system of ground state excitons in multiple InAs-GaSb coupled quantum wells as a new source of superradiance. Coupled InAs-GaSb quantum wells can be tuned to a very large wavelength that makes it possible to fabricate a sample with a large number of quantum wells radiating in phase, and in this way to increase the superradiant effect. Depending on the parameters of the system, this superradiance may be a direct analogy of the known Dicke case, or a realization of new type N-level superradiance. In the last case, the time dependence of the luminescence presents N decaying peaks. This dependence may be considered as a manifestation of transition to the Bose condensate phase.
AB - We suggest a system of ground state excitons in multiple InAs-GaSb coupled quantum wells as a new source of superradiance. Coupled InAs-GaSb quantum wells can be tuned to a very large wavelength that makes it possible to fabricate a sample with a large number of quantum wells radiating in phase, and in this way to increase the superradiant effect. Depending on the parameters of the system, this superradiance may be a direct analogy of the known Dicke case, or a realization of new type N-level superradiance. In the last case, the time dependence of the luminescence presents N decaying peaks. This dependence may be considered as a manifestation of transition to the Bose condensate phase.
UR - http://www.scopus.com/inward/record.url?scp=29644436097&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.72.245333
DO - 10.1103/PhysRevB.72.245333
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AN - SCOPUS:29644436097
SN - 1098-0121
VL - 72
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 24
M1 - 245333
ER -