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 language | English |
|---|---|
| Article number | 221102 |
| Journal | Journal of Chemical Physics |
| Volume | 126 |
| Issue number | 22 |
| DOIs | |
| Publication status | Published - Jun 27 2007 |
| Externally published | Yes |
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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 journal › Article
}
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
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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 -