Observing the stimulated raman gain spectra of solutions using an infrared pump pulse with narrow linewidth and a low-noise CW probe laser

Tadao Tanabe, Yuichi Kozawa, Ken Suto, Jun Ichi Nishizawa, Ytaka Oyama

Research output: Contribution to journalArticlepeer-review

Abstract

Stimulated Raman gain (SRG) spectroscopy using infrared pump pulses with narrow linewidth and a low-noise cw probe infrared laser was proposed. High-resolution Raman spectra of solutions were obtained. The SRG spectra of crystal GaP, benzene, and toluene were measured to confirm the spectral resolution and sensitivity over the terahertz (THz) region. We discuss the polarization dependence of the spectral measurement of carbon tetrachloride. Our system can detect organic molecules in aqueous solutions.

Original languageEnglish
Pages (from-to)881-892
Number of pages12
JournalInternational Journal of Infrared and Millimeter Waves
Volume26
Issue number6
DOIs
Publication statusPublished - 2005 Jun
Externally publishedYes

Keywords

  • Low-noise cw probe infrared laser
  • Solutions
  • Stimulated Raman gain spectroscopy
  • Terahertz vibrations

ASJC Scopus subject areas

  • Radiation
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Condensed Matter Physics
  • Physics and Astronomy (miscellaneous)
  • Electrical and Electronic Engineering

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