Intrinsic non-linearities in exciton-cavity-coupled systems

We investigate the mechanisms leading to the optical non-linearities observed on a strongly excited semiconductor microcavity containing quantum wells. This study of a coupled exciton-cavity system is possible owing to the availability of a sample of exceptionally high quality, permitting to exclude effects of disorder and inhomogeneous broadening. Sub-picosecond pump and probe experiments are performed, in the regime of an incoherent exciton gas of high density. For such a gas the dephasing due to collisions is not efficient enough to cause the break-down of the strong coupling and hence the collapse of the Rabi splitting. Phase-space filling and exchange effects are the dominant mechanisms. (C) 1999 Elsevier Science B.V. All rights reserved.


Published in:
Physica B, 272, 1-4, 472-475
Year:
1999
ISSN:
0921-4526
Keywords:
Note:
Swiss Fed Inst Technol, PH Ecublens, Dept Phys, CH-1015 Lausanne, Switzerland. Univ Cagliari, Dipartimento Fis, I-09042 Monserrato, CA, Italy. Univ Cagliari, Ist Nazl Fis Mat, I-09042 Monserrato, CA, Italy. Saba, M, Swiss Fed Inst Technol, PH Ecublens, Dept Phys, CH-1015 Lausanne, Switzerland.
ISI Document Delivery No.: 267TP
Times Cited: 2
Cited Reference Count: 4
Cited References:
HULIN D, 1986, PHYS REV B, V33, P4389
JAHNKE F, 1996, PHYS REV LETT, V77, P5257
PEYGHAMBARIAN N, 1984, PHYS REV LETT, V53, P2433
WANG HL, 1995, PHYS REV B, V51, P14713
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 Record created 2007-08-31, last modified 2018-03-17


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