Frequency-tunable terahertz-wave generation from GaP using Cr:forsterite lasers

J. Nishizawa, T. Sasaki, K. Suto, T. Tanabe, T. Yoshida, T. Kimura, K. Saito

Research output: Contribution to journalArticlepeer-review

17 Citations (Scopus)


We have constructed THz spectrometers using the widely frequency-tunable THz-wave generated from GaP crystal pumped at 1.2 μm region using two Cr:forsterite lasers and compared with that pumped at 1 μm region using a YAG laser and an optical parametric oscillator (OPO). The systems have sufficient resolution for observation of solids and liquids at room temperature. We have measured terahertz absorption spectra of all twenty kinds of amino acids which form proteins.

Original languageEnglish
Pages (from-to)779-789
Number of pages11
JournalInternational Journal of Infrared and Millimeter Waves
Issue number6
Publication statusPublished - 2006 Jun
Externally publishedYes


  • Cr:forsterite
  • GaP
  • Phase matching
  • Raman
  • Spectroscopy
  • Terahertz wave

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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