Strong coherent gain from semiconductor microcavities in the regime of excitonic saturation

We present femtosecond gain measurements in microcavity-embedded quantum wells. When the excitonic transition is saturated by an intense pump field, the spectrum measured with a weak probe pulse is strongly modulated by pump-probe wave mixing processes. A giant probe amplification occurs within the bandwidth of the empty-cavity mode. The optical feedback provided by the microcavity is responsible for a net gain of the broadband probe pulse. [S0163-1829(99)50424-4].


Published in:
Physical Review B, 59, 24, R15594-R15597
Year:
1999
ISSN:
0163-1829
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. Swiss Fed Inst Technol, Dept Phys, CH-1015 Lausanne, Switzerland. Quochi, F, Swiss Fed Inst Technol, Dept Phys, PH Ecublens, CH-1015 Lausanne, Switzerland.
ISI Document Delivery No.: 210ZD
Times Cited: 0
Cited Reference Count: 16
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