Fourier Transform THz-Wave Spectrometer Using THz-Wave Parametric Generator

Abstract

We have developed a THz-wave spectrometer with the combination of a bright THz-wave source of THz-wave parametric generator (TPG) and a Martin- Puplett interferometer. The TPG output was optimized by studying various configurations with LiNbO3 crystals. THz-waves which span the 1-2THz region were emitted with the peak power of 280 micro W. The whole system, including the nitrogen-purge unit, was constructed in a table-top size. By use of the THz-wave spectrometer, absorption lines of water vapor were successfully obtained.

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Document Details

Document Type
Technical Report
Publication Date
Sep 29, 2000
Accession Number
ADP011772

Entities

People

  • Hiromasa Ito
  • Jun-ichi Shikata
  • Kodo Kawase
  • Tetsuo Taniuchi

Organizations

  • Tohoku University

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Demographic Cohorts
  • Detectors
  • Frequency
  • Frequency Shift
  • Interferometers
  • Materials
  • Oscillators
  • Polaritons
  • Resonant Frequency
  • Scattering
  • Spectra
  • Spectrometers
  • Spectroscopy
  • Terahertz Radiation
  • Water Vapor
  • Waves

Readers

  • Information Retrieval
  • Optical Physics and Photonics.