Terahertz transmission spectroscopic analysis of mono- and di-substituted hydroxynaphthalenes in the 0.5- to 6-THz region using GaP THz wave generator

College

College of Science

Department/Unit

Physics

Document Type

Conference Proceeding

Source Title

IRMMW-THz 2006 - 31st International Conference on Infrared and Millimeter Waves and 14th International Conference on Terahertz Electronics

First Page

540

Publication Date

12-1-2006

Abstract

We report the room temperature terahaertz (THz) transmission spectroscopy measurements of mono- and di-substituted hydroxynaphthalenes in the 0.5- to 6-THz region using a GaP THz wave generator. Several absorption peaks were observed and ascribed to be the fundamental vibrational modes of each of the isomers which were also validated by ab initio calculations. The absorption peak at 4 THz is attributed to the twisting of the 1,4-naphthol about its longer axis while the absorption peak at 5 THz is due to the butterfly motion of the naphthol about its shorter axis. ©2006 IEEE.

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Digitial Object Identifier (DOI)

10.1109/ICIMW.2006.368748

Disciplines

Physics

Keywords

Terahertz spectroscopy; Gallium alloys; Phenols

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