✦ LIBER ✦

Quantum-Kinetic Theory of Excitonic Hyper-Raman Gain

✍ Scribed by K. Hannewald; S. Glutsch; F. Bechstedt

Publisher: John Wiley and Sons
Year: 2000
Tongue: English
Weight: 93 KB
Volume: 221
Category: Article
ISSN: 0370-1972
DOI: 10.1002/1521-3951(200009)221:1<245::aid-pssb245>3.0.co;2-u

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✦ Synopsis

We present a quantum-kinetic theory of hyper-Raman gain due to excitons in semiconductors coherently driven with femtosecond pulses. We observe strong deviations from the stationary picture. The gain region is not simply a mirror image of the exciton, and saturation effects emerge for large fields. The complex interplay of excitons, continuum states, Coulomb interaction, dynamic aspects and quantum-kinetic features is discussed. The numerical results are in good agreement with recent measurements [

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