Infrared spectra of organic monolayer films in a standing wave measured by photon-trap spectroscopy

Kazuhiro Egashira, Akira Terasaki, Tamotsu Kondow

研究成果: Contribution to journalArticle査読

11 被引用数 (Scopus)

抄録

Photon-trap spectroscopy, a generalized scheme of cavity ringdown spectroscopy, is applied to measure an infrared spectrum of the C-H stretching vibration of alkylsiloxane monolayer films grafted on a silicon substrate. A continuous-wave laser beam is introduced into a high-finesse Fabry-Ṕrot cavity containing the substrate placed exactly normal to the light beam to minimize optical losses. The lifetime of the light trapped in the cavity is measured to detect optical absorption sensitively. The results show clear dependence of the absorbance on the location of the monolayers with respect to a standing wave formed in the cavity; the absorbance is practically zero when the monolayers on both the surfaces are adjusted at nodes, whereas it is maximized at antinodes. The present experiment is materialized on the basis of the principles established by our previous study [Terasaki, J. Opt. Soc. Am. B 22, 675 (2005)].

本文言語英語
論文番号221102
ジャーナルJournal of Chemical Physics
126
22
DOI
出版ステータス出版済み - 2007
外部発表はい

All Science Journal Classification (ASJC) codes

  • 物理学および天文学(全般)
  • 物理化学および理論化学

フィンガープリント

「Infrared spectra of organic monolayer films in a standing wave measured by photon-trap spectroscopy」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル