Measurement of nonresonant third-order susceptibilities of various gases by the nonlinear interferometric technique

Jae Won Hahn, Eun Seong Lee

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We applied nonlinear interferometry of coherent anti-Stokes Raman spectroscopy (CARS) to measure the nonresonant third-order susceptibilities of various gases. Using argon as an internal calibration standard, we determined the effective nonresonant susceptibilities of acetylene, carbon dioxide, methane, nitrogen, oxygen, propane, carbon monoxide, Freon, and hydrogen from the amplitudes of the interference fringes of the CARS signals generated in the two gas cells. The electronic susceptibility was calculated by subtracting the offresonant term of each molecule from the measured effective nonresonant susceptibility, and the results of this work are compared with the published data. The overall uncertainty is estimated to be less than 5%.

Original languageEnglish
Pages (from-to)1021-1027
Number of pages7
JournalJournal of the Optical Society of America B: Optical Physics
Issue number6
Publication statusPublished - 1995 Jan


All Science Journal Classification (ASJC) codes

  • Statistical and Nonlinear Physics
  • Atomic and Molecular Physics, and Optics

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