GaP Raman Terahertz high accuracy spectrometer and its application to detect organic and inorganic crystalline defects

Jun Ichi Nishizawa, Ken Suto, Tetsuo Sasaki, Tadao Tanabe, Takenori Tanno, Yutaka Oyama, Fumikazu Sato

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

One of the most important uses of THz spectrometry is to detect defects in molecular structure or in crystals efficiently. We applied GaP Raman THz (GRT) spectrometer to detect and evaluate defects in inorganic and organic materials. High THz-wave absorption due to high defect density of GaSe crystal lowered the efficiency of THz wave generation, when the crystal is used as nonlinear material for DFG (Difference Frequency Generation). Defects in organic molecules could be observed as changes in frequency, intensities of the absorption, and broadenings of the spectra.

Original languageEnglish
Pages (from-to)353-358
Number of pages6
JournalProceedings of the Japan Academy Series B: Physical and Biological Sciences
Volume82
Issue number9
DOIs
Publication statusPublished - 2006

Keywords

  • Asparagine
  • Defects
  • GaP Raman THz (GRT) spectrometer
  • GaSe
  • Glucose
  • Terahertz

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Physics and Astronomy(all)

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