Relationship between THz energy decay and molecular vibration of 1-methyl-4-{2-[4-(dimethylamino)phenyl]ethenyl}pyridinium p-toluenesulfonate derivatives

Eunsang Kwon; Shuji Okada; Hachiro Nakanishi

doi:10.1143/JJAP.46.L46

Relationship between THz energy decay and molecular vibration of 1-methyl-4-{2-[4-(dimethylamino)phenyl]ethenyl}pyridinium p-toluenesulfonate derivatives

Eunsang Kwon, Shuji Okada, Hachiro Nakanishi

SCI - Research and Analytical Center for Giant Molecules

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

4 Citations (Scopus)

Abstract

We investigated the origin of terahertz (THz) energy decay, upon THz generation by difference frequency generation (DFG), of 1-methyl-4-{2-[4- (dimethylamino)phenyl]ethenyl}pyridinium p-toluenesulfonate (DAST) derivatives by density functional theory (DFT) calculations. The strong energy decays at 8.5 and 7.6 THz were found to originate from the in-plane ring deformation vibration of the anion part of DAST and 1-methyl-4-{2-[4-(dimethylamino)phenyl] ethenyl jpyridinium p-chlorobenzenesulfonate (DASC), respectively.

Original language	English
Pages (from-to)	L46-L48
Journal	Japanese Journal of Applied Physics
Volume	46
Issue number	1-3
DOIs	https://doi.org/10.1143/JJAP.46.L46
Publication status	Published - 2007 Jan 12

Keywords

DAST
Density functional theory calculation
Far-infrared absorption
Molecular vibration
Terahertz generation

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abstract = "We investigated the origin of terahertz (THz) energy decay, upon THz generation by difference frequency generation (DFG), of 1-methyl-4-{2-[4- (dimethylamino)phenyl]ethenyl}pyridinium p-toluenesulfonate (DAST) derivatives by density functional theory (DFT) calculations. The strong energy decays at 8.5 and 7.6 THz were found to originate from the in-plane ring deformation vibration of the anion part of DAST and 1-methyl-4-{2-[4-(dimethylamino)phenyl] ethenyl jpyridinium p-chlorobenzenesulfonate (DASC), respectively.",

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T1 - Relationship between THz energy decay and molecular vibration of 1-methyl-4-{2-[4-(dimethylamino)phenyl]ethenyl}pyridinium p-toluenesulfonate derivatives

AU - Kwon, Eunsang

AU - Okada, Shuji

AU - Nakanishi, Hachiro

PY - 2007/1/12

Y1 - 2007/1/12

N2 - We investigated the origin of terahertz (THz) energy decay, upon THz generation by difference frequency generation (DFG), of 1-methyl-4-{2-[4- (dimethylamino)phenyl]ethenyl}pyridinium p-toluenesulfonate (DAST) derivatives by density functional theory (DFT) calculations. The strong energy decays at 8.5 and 7.6 THz were found to originate from the in-plane ring deformation vibration of the anion part of DAST and 1-methyl-4-{2-[4-(dimethylamino)phenyl] ethenyl jpyridinium p-chlorobenzenesulfonate (DASC), respectively.

AB - We investigated the origin of terahertz (THz) energy decay, upon THz generation by difference frequency generation (DFG), of 1-methyl-4-{2-[4- (dimethylamino)phenyl]ethenyl}pyridinium p-toluenesulfonate (DAST) derivatives by density functional theory (DFT) calculations. The strong energy decays at 8.5 and 7.6 THz were found to originate from the in-plane ring deformation vibration of the anion part of DAST and 1-methyl-4-{2-[4-(dimethylamino)phenyl] ethenyl jpyridinium p-chlorobenzenesulfonate (DASC), respectively.

KW - DAST

KW - Density functional theory calculation

KW - Far-infrared absorption

KW - Molecular vibration

KW - Terahertz generation

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Relationship between THz energy decay and molecular vibration of 1-methyl-4-{2-[4-(dimethylamino)phenyl]ethenyl}pyridinium p-toluenesulfonate derivatives

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Keywords

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