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

Kazuhiro Egashira, Akira Terasaki, Tamotsu Kondow

Research output: Contribution to journalArticle

11 Citations (Scopus)

Abstract

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)].

Original languageEnglish
Article number221102
JournalJournal of Chemical Physics
Volume126
Issue number22
DOIs
Publication statusPublished - Jun 27 2007
Externally publishedYes

Fingerprint

standing waves
Monolayers
infrared spectra
Photons
traps
Spectroscopy
Infrared radiation
cavities
photons
spectroscopy
Optical losses
Continuous wave lasers
Silicon
Substrates
antinodes
Light absorption
Stretching
Laser beams
continuous wave lasers
light beams

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics

Cite this

Infrared spectra of organic monolayer films in a standing wave measured by photon-trap spectroscopy. / Egashira, Kazuhiro; Terasaki, Akira; Kondow, Tamotsu.

In: Journal of Chemical Physics, Vol. 126, No. 22, 221102, 27.06.2007.

Research output: Contribution to journalArticle

@article{5bb308b1aa0e468baf2c83f8155e7a12,
title = "Infrared spectra of organic monolayer films in a standing wave measured by photon-trap spectroscopy",
abstract = "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)].",
author = "Kazuhiro Egashira and Akira Terasaki and Tamotsu Kondow",
year = "2007",
month = "6",
day = "27",
doi = "10.1063/1.2748747",
language = "English",
volume = "126",
journal = "Journal of Chemical Physics",
issn = "0021-9606",
publisher = "American Institute of Physics Publising LLC",
number = "22",

}

TY - JOUR

T1 - Infrared spectra of organic monolayer films in a standing wave measured by photon-trap spectroscopy

AU - Egashira, Kazuhiro

AU - Terasaki, Akira

AU - Kondow, Tamotsu

PY - 2007/6/27

Y1 - 2007/6/27

N2 - 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)].

AB - 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)].

UR - http://www.scopus.com/inward/record.url?scp=34250707977&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=34250707977&partnerID=8YFLogxK

U2 - 10.1063/1.2748747

DO - 10.1063/1.2748747

M3 - Article

AN - SCOPUS:34250707977

VL - 126

JO - Journal of Chemical Physics

JF - Journal of Chemical Physics

SN - 0021-9606

IS - 22

M1 - 221102

ER -