Polarization modulation FTIR spectroscopy of a spread monolayer at the air-water interface

D. Blaudez; Thierry Buffeteau; J. C. Cornut; B. Desbat; N. Escafre; Michel Pezolet; J. M. Turlet

doi:10.1117/12.166641

31 January 1994 Polarization modulation FTIR spectroscopy of a spread monolayer at the air-water interface

D. Blaudez, Thierry Buffeteau, J. C. Cornut, B. Desbat, N. Escafre, Michel Pezolet, J. M. Turlet

Proceedings Volume 2089, 9th International Conference on Fourier Transform Spectroscopy; (1994) https://doi.org/10.1117/12.166641
Event: Fourier Transform Spectroscopy: Ninth International Conference, 1993, Calgary, Canada

Abstract

This study devoted to FTIR spectroscopy of monolayers spread at the air/water interface is, to our knowledge, the first one presenting complete mid-infrared monolayer spectra devoid of strong water vapor absorptions. This has been possible by using the PM-IRRAS method combining polarization modulation with two channel simultaneous acquisition. Due to its differential character, the detected signal is not sensitive to the isotropic absorptions of the sample environment. From theoretical simulations and experiments, the best angle of incidence was found to be near 76 degree(s) for the detection of intrasurface as well as out of surface transition moments. Under these experimental conditions, the absorption bands of the monolayer appear upwards or downwards in the normalized difference (covered vs uncovered) PM-IRRAS spectra depending on the orientation (parallel or perpendicular) of their transition moments with respect to the interface.

Citation Download Citation

D. Blaudez, Thierry Buffeteau, J. C. Cornut, B. Desbat, N. Escafre, Michel Pezolet, and J. M. Turlet "Polarization modulation FTIR spectroscopy of a spread monolayer at the air-water interface", Proc. SPIE 2089, 9th International Conference on Fourier Transform Spectroscopy, (31 January 1994); https://doi.org/10.1117/12.166641

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available