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Proceedings Paper

Resonance hyper-Raman and second-harmonic scattering by semiconductor quantum dots embedded in a dielectric medium
Author(s): A. V. Baranov; Kuon Inoue; K. Toba; Akio Yamanaka; V. I. Petrov; A. V. Fedorov
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Paper Abstract

The excitation profile of both resonant hyper-Raman and second-harmonic scattering in a CdS quantum dot system are reported for the first time. It is found that in the respective two-photon excitation spectra around the fundamental absorption region, two maxima more pronounced than those of one-photon absorption (OPA) spectrum are observed with narrower widths, and that their energy positions shift from the OPA peaks. The present signals may be interpreted as arising from two-photon resonances between quantum-confined valence- and conduction-band states with their angular momenta different by +/- 1, where as the off- diagonal Frochlih interaction controls mainly the RHRS process.

Paper Details

Date Published: 10 June 1996
PDF: 7 pages
Proc. SPIE 2801, Nonlinear Optics of Low-Dimensional Structures and New Materials, (10 June 1996); doi: 10.1117/12.242144
Show Author Affiliations
A. V. Baranov, Hokkaido Univ. (Japan) and S.I. Vavilov State Optical Institute (Russia)
Kuon Inoue, Hokkaido Univ. (Japan)
K. Toba, Hokkaido Univ. (Japan)
Akio Yamanaka, Hokkaido Univ. (Japan)
V. I. Petrov, S.I. Vavilov State Optical Institute (Russia)
A. V. Fedorov, S.I. Vavilov State Optical Institute (Russia)

Published in SPIE Proceedings Vol. 2801:
Nonlinear Optics of Low-Dimensional Structures and New Materials
Vladimir I. Emel'yanov; Vladislav Ya. Panchenko, Editor(s)

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