The importance of disorder in very high quality semiconductor microcavities

We investigate a semiconductor microcavity containing a quantum well, a sample of exceptional quality. We observe a four-wave mixing response which resembles that of an inhomogeneously broadened exciton system, while the linear transmission measurements are affected by the homogeneous part of the broadening and have a completely different decay time. We show that the four-wave mixing response cannot be calculated using the excitonic parameters (linewidth and relaxation time) extracted from the linear transmission measurements, as the coupling of exciton and photon states deeply modifies the scattering channels.


Published in:
Physica Status Solidi a-Applied Research, 178, 1, 149-153
Year:
2000
ISSN:
0031-8965
Keywords:
Note:
Swiss Fed Inst Technol, Dept Phys, PH Ecublens, 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, Dept Phys, PH Ecublens, CH-1015 Lausanne, Switzerland.
ISI Document Delivery No.: 303TG
Times Cited: 3
Cited Reference Count: 6
Cited References:
ANDREANI LC, 1994, PHYS LETT A, V192, P99
BONGIOVANNI G, 1997, PHYS REV B, V55, P7084
ELL C, 1998, PHYS REV LETT, V80, P4795
SAVONA V, 1995, SOLID STATE COMMUN, V93, P733
SAVONA V, 1997, PHYS REV LETT, V78, P4470
WHITTAKER DM, 1998, PHYS REV LETT, V80, P4791
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 Record created 2007-08-31, last modified 2018-01-28


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