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

Research output: Contribution to journalArticle

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 languageEnglish
Pages (from-to)L46-L48
JournalJapanese Journal of Applied Physics, Part 2: Letters
Volume46
Issue number1-3
DOIs
Publication statusPublished - 2007 Jan 12

Keywords

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

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy (miscellaneous)
  • Physics and Astronomy(all)

Fingerprint Dive into the research topics of 'Relationship between THz energy decay and molecular vibration of 1-methyl-4-{2-[4-(dimethylamino)phenyl]ethenyl}pyridinium p-toluenesulfonate derivatives'. Together they form a unique fingerprint.

  • Cite this