Time-resolved vibrational optical activity measurement by the infrared-visible sum-frequency-generation with circularly polarized infrared light

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23 Citations (Scopus)

Abstract

The time-resolved infrared-visible sum-frequency-generation (IV-SFG) process of chiral liquids, when the infrared beam is circularly polarized, was theoretically considered. It was shown that the transient dynamics of the molecular chirality can be measured by using the time-resolved circularly polarized (CP) IV-SFG method when the polarization direction of the detected IV-SFG field is controlled to be perpendicular to the polarization directions of the incident infrared (IR) as well as visible beams. In addition, the circular intensity difference was theoretically considered, and it was illustrated that the circular intensity difference (CID) signal is originated from the interference between the all-electric-dipole allowed polarization and the polarizability-quadrupole-induced polarization.

Original languageEnglish
Pages (from-to)1562-1570
Number of pages9
JournalJournal of Chemical Physics
Volume116
Issue number4
DOIs
Publication statusPublished - 2002 Jan 22

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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