Off-resonant coherent hyper-Raman scattering spectroscopy

Minhaeng Cho

doi:10.1063/1.473758

Off-resonant coherent hyper-Raman scattering spectroscopy

Minhaeng Cho

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

A theoretical description of the off-resonant coherent hyper-Raman scattering spectroscopy is presented. By considering two pump fields whose frequencies and corresponding wave vectors are ω₁, ω₂(= 2ω₁), k₁, and k₂, respectively, the effective Hamiltonian is derived to show that the spatial transient grating can be created by the third-order interaction with the pump fields. A delayed probe field with frequency of ω₁ and wave vector of k₁ is scattered by the spatial transient grating to produce the macroscopic polarization with wave vector 4k₁ - k₂. The expressions for the measured signals by homodyne and heterodyne method are derived and compared with that of the spontaneous hyper-Raman scattering signal.

Original language	English
Pages (from-to)	7550-7557
Number of pages	8
Journal	Journal of Chemical Physics
Volume	106
Issue number	18
DOIs	https://doi.org/10.1063/1.473758
Publication status	Published - 1997 May 8

ASJC Scopus subject areas

Physics and Astronomy(all)
Physical and Theoretical Chemistry

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abstract = "A theoretical description of the off-resonant coherent hyper-Raman scattering spectroscopy is presented. By considering two pump fields whose frequencies and corresponding wave vectors are ω1, ω2(= 2ω1), k1, and k2, respectively, the effective Hamiltonian is derived to show that the spatial transient grating can be created by the third-order interaction with the pump fields. A delayed probe field with frequency of ω1 and wave vector of k1 is scattered by the spatial transient grating to produce the macroscopic polarization with wave vector 4k1 - k2. The expressions for the measured signals by homodyne and heterodyne method are derived and compared with that of the spontaneous hyper-Raman scattering signal.",

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AB - A theoretical description of the off-resonant coherent hyper-Raman scattering spectroscopy is presented. By considering two pump fields whose frequencies and corresponding wave vectors are ω1, ω2(= 2ω1), k1, and k2, respectively, the effective Hamiltonian is derived to show that the spatial transient grating can be created by the third-order interaction with the pump fields. A delayed probe field with frequency of ω1 and wave vector of k1 is scattered by the spatial transient grating to produce the macroscopic polarization with wave vector 4k1 - k2. The expressions for the measured signals by homodyne and heterodyne method are derived and compared with that of the spontaneous hyper-Raman scattering signal.

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Off-resonant coherent hyper-Raman scattering spectroscopy

Abstract

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