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Nishizawa J, Suto K, Sasaki T, et al. GaP Raman Terahertz high accuracy spectrometer and its application to detect organic and inorganic crystalline defects. Proc Jpn Acad Ser B Phys Biol Sci. 2006;82(9):353-8doi: 10.2183/pjab.82.353.
Nishizawa, J., Suto, K., Sasaki, T., Tanabe, T., Tanno, T., Oyama, Y., & Sato, F. (2006). GaP Raman Terahertz high accuracy spectrometer and its application to detect organic and inorganic crystalline defects. Proceedings of the Japan Academy. Series B, Physical and biological sciences, 82(9), 353-8. https://doi.org/10.2183/pjab.82.353
Nishizawa, Jun-Ichi, et al. "GaP Raman Terahertz high accuracy spectrometer and its application to detect organic and inorganic crystalline defects." Proceedings of the Japan Academy. Series B, Physical and biological sciences vol. 82,9 (2006): 353-8. doi: https://doi.org/10.2183/pjab.82.353
Nishizawa J, Suto K, Sasaki T, Tanabe T, Tanno T, Oyama Y, Sato F. GaP Raman Terahertz high accuracy spectrometer and its application to detect organic and inorganic crystalline defects. Proc Jpn Acad Ser B Phys Biol Sci. 2006 Dec;82(9):353-8. doi: 10.2183/pjab.82.353. Epub 2006 Feb 12. PMID: 25792796; PMCID: PMC4338840.
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Proc Jpn Acad Ser B Phys Biol Sci. 2006 Dec;82(9):353-8. doi: 10.2183/pjab.82.353. Epub 2006 Feb 12.

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

Proceedings of the Japan Academy. Series B, Physical and biological sciences

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

Affiliations

  1. Semiconductor Research Institute, Sendai, Japan .
  2. Department of Material Science, Tohoku University, Sendai, Japan .

PMID: 25792796 PMCID: PMC4338840 DOI: 10.2183/pjab.82.353

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.

Keywords: GaP Raman THz (GRT) spectrometer; GaSe; Terahertz; asparagine; defects; glucose

References

  1. Mol Cancer. 2004 Mar 22;3:9 - PubMed
  2. Opt Lett. 2002 Aug 15;27(16):1454-6 - PubMed

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