Is light absorption by excitons in quantum wells an intrinsic process?
A novel method of controlling light absorption by exciton-polaritons is presented. The coherent light-induced coupling of excitons in multiple quantum well Bragg structures is exploited to sup press dramatically the absorption. Our results show that excitonic light absorption is not an intrinsic property of excitons but rather an extrinsic effect that occurs when the excitons dephase.
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Swiss Fed Inst Technol, Dept Phys, IMO, EPFL, CH-1015 Lausanne, Switzerland. Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England. Swiss Fed Inst Technol, Dept Phys, IPT, EPFL, CH-1015 Lausanne, Switzerland. Hayes, GR, Swiss Fed Inst Technol, Dept Phys, IMO, EPFL, CH-1015 Lausanne, Switzerland.
ISI Document Delivery No.: 303TG
Times Cited: 0
Cited Reference Count: 3
HAYES GR, IN PRESS PHYS REV LE
IVCHENKO EL, 1994, PHYS SOLID STATE, V36, P1156
LEE D, 1991, J APPL PHYS, V69, P6722
Record created on 2007-08-31, modified on 2016-08-08