Circularly polarized infrared and visible sum-frequency-generation spectroscopy: Vibrational optical activity measurement

Sangheon Cheon, Minhaeng Cho

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Abstract

Vibrational optical activity spectroscopies utilizing either circularly polarized it or circularly polarized visible beams were theoretically investigated by considering the infrared and visible sum-frequency-generation (IV-SFG) schemes. In addition to the purely electric dipole-allowed chiral component of the IV-SFG susceptibility, the polarizability-electric quadrupole hyperpolarizability term also contributes to the vibrationally resonant IV-SFG susceptibility. The circular-intensity-difference signal is shown to be determined by the interferences between the all-electric dipole-allowed chiral component and the polarizability-electric-dipole or electric-dipole-electric- quadrupole Raman optical activity tensor components. The circularly polarized SFG methods are shown to be potentially useful coherent spectroscopic tools for determining absolute configurations of chiral molecules in condensed phases.

Original languageEnglish
Article number013808
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume71
Issue number1
DOIs
Publication statusPublished - 2005 Jan 1

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ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Physics and Astronomy(all)

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