期刊
CHEMICAL PHYSICS LETTERS
卷 490, 期 1-3, 页码 97-101出版社
ELSEVIER
DOI: 10.1016/j.cplett.2010.03.008
关键词
-
资金
- National Science Foundation
- Arnold and Mabel Beckman Foundation
- Monfort Family Foundation
- Alfred P. Sloan Foundation
Through use of coherence-modulated optical third harmonic generation, we simultaneously observe and distinguish coherent phonon oscillations from the bulk and interface of Bi3Ge4O12, which lacks inversion symmetry. We report the first observation of a coherent second hyper-Raman signal in bulk, along with phonon-induced Fresnel boundary modulation at the interface, both affecting the signal amplitude of the far-field third harmonic. (C) 2010 Elsevier B.V. All rights reserved.
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