Direct observation of the excitonic ac Stark splitting in a quantum well

Ultrafast pump-probe measurements evidence the dynamical Stark splitting in the exciton absorption spectrum of a single semiconductor quantum well. The intensity of the Stark sidebands in the spectrum is comparable to the linear absorption and their separation scales as the pump field amplitude. In the time domain the Rabi oscillations are observed. The semiconductor Bloch equations solved in the Hartree-Fock approximation demonstrate that the coherent exciton-light coupling dominates over the many-body dephasing.


Publié dans:
Physical Review B, 62, 24, R16322-R16325
Année
2000
ISSN:
1098-0121
Mots-clefs:
Note:
Fed Inst Technol Lausanne, Dept Phys, PH Ecublens, EPFL, CH-1015 Lausanne, Switzerland. Univ Cagliari, Dipartimento Fis, Cagliari, Italy. Univ Cagliari, Ist Nazl Fis Mat, Cagliari, Italy. Saba, M, Fed Inst Technol Lausanne, Dept Phys, PH Ecublens, EPFL, CH-1015 Lausanne, Switzerland.
ISI Document Delivery No.: 390QL
Times Cited: 0
Cited Reference Count: 18
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Autres identifiants:
Laboratoires:




 Notice créée le 2007-08-31, modifiée le 2018-03-17


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