THz transmittance measurements of nucleobases and related molecules in the 0.4- to 5.8-THz region using a GaP THz wave generator

Jun Ichi Nishizawa; Tetsuo Sasaki; Ken Suto; Tadao Tanabe; Kyosuke Saito; Tetsuya Yamada; Tomoyuki Kimura

doi:10.1016/j.optcom.2004.10.076

THz transmittance measurements of nucleobases and related molecules in the 0.4- to 5.8-THz region using a GaP THz wave generator

Jun Ichi Nishizawa, Tetsuo Sasaki, Ken Suto, Tadao Tanabe, Kyosuke Saito, Tetsuya Yamada, Tomoyuki Kimura

Research output: Contribution to journal › Article › peer-review

53 Citations (Scopus)

Abstract

An automatic measurement system for terahertz (THz) transmission spectroscopy based on difference-frequency generation (DFG) of widely tunable coherent THz waves via excitation of a phonon-polariton mode in GaP was constructed and improved to give it a wider frequency measurement range and four times greater S/N ratio by using the double-beam method. In this paper, we present spectroscopic measurements of nucleobases, nucleosides, deoxynucleosides, and nucleotides, all of which are the components of RNA and DNA molecules, in the range of 0.4-5.8 THz in order to compare their characteristic features in the wider terahertz frequency region.

Original language	English
Pages (from-to)	229-239
Number of pages	11
Journal	Optics Communications
Volume	246
Issue number	1-3
DOIs	https://doi.org/10.1016/j.optcom.2004.10.076
Publication status	Published - 2005 Feb 1
Externally published	Yes

Keywords

DNA
Frequency-tunable coherent terahertz wave
GaP
Phonon-polariton
RNA
Terahertz spectrometer

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

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10.1016/j.optcom.2004.10.076

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THz transmittance measurements of nucleobases and related molecules in the 0.4- to 5.8-THz region using a GaP THz wave generator. / Nishizawa, Jun Ichi; Sasaki, Tetsuo; Suto, Ken; Tanabe, Tadao; Saito, Kyosuke; Yamada, Tetsuya; Kimura, Tomoyuki.

In: Optics Communications, Vol. 246, No. 1-3, 01.02.2005, p. 229-239.

Research output: Contribution to journal › Article › peer-review

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AU - Sasaki, Tetsuo

AU - Suto, Ken

AU - Tanabe, Tadao

AU - Saito, Kyosuke

AU - Yamada, Tetsuya

AU - Kimura, Tomoyuki

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