Brillouin spectroscopy of Langmuir-Blodgett films

R. Zanoni; C. Naselli; J. Bell; G. Stegeman; R. Sprague; C. Seaton; Stuart Lindsay

doi:10.1016/0040-6090(85)90129-4

Brillouin spectroscopy of Langmuir-Blodgett films

R. Zanoni, C. Naselli, J. Bell, G. Stegeman, R. Sprague, C. Seaton, Stuart Lindsay

Physics

Research output: Contribution to journal › Article › peer-review

9 Scopus citations

Abstract

Brillouin scattering has been used for the first time to measure the elastic constants of cadmium arachidate films which were deposited by the Langmuir- Blodgett (LB) technique onto glass and aluminum film substrates. A nine-pass tandem Fabry-Perot interferometer was used to analyze the frequencies of light scattered by multiple high frequency thermally excited surface acoustic waves guided by surfaces overcoated with LB films of various thickness. Dramatic changes were observed in the Brillouin spectrum for as few as 11 monolayers. Upper limits for the elastic constants and velocity of sound in the LB films were estimated from the Brillouin components.

Original language	English (US)
Pages (from-to)	179-186
Number of pages	8
Journal	Thin Solid Films
Volume	134
Issue number	1-3
DOIs	https://doi.org/10.1016/0040-6090(85)90129-4
State	Published - Dec 20 1985

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Surfaces and Interfaces
Surfaces, Coatings and Films
Metals and Alloys
Materials Chemistry

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10.1016/0040-6090(85)90129-4

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AU - Zanoni, R.

AU - Naselli, C.

AU - Bell, J.

AU - Stegeman, G.

AU - Sprague, R.

AU - Seaton, C.

AU - Lindsay, Stuart

PY - 1985/12/20

Y1 - 1985/12/20

N2 - Brillouin scattering has been used for the first time to measure the elastic constants of cadmium arachidate films which were deposited by the Langmuir- Blodgett (LB) technique onto glass and aluminum film substrates. A nine-pass tandem Fabry-Perot interferometer was used to analyze the frequencies of light scattered by multiple high frequency thermally excited surface acoustic waves guided by surfaces overcoated with LB films of various thickness. Dramatic changes were observed in the Brillouin spectrum for as few as 11 monolayers. Upper limits for the elastic constants and velocity of sound in the LB films were estimated from the Brillouin components.

AB - Brillouin scattering has been used for the first time to measure the elastic constants of cadmium arachidate films which were deposited by the Langmuir- Blodgett (LB) technique onto glass and aluminum film substrates. A nine-pass tandem Fabry-Perot interferometer was used to analyze the frequencies of light scattered by multiple high frequency thermally excited surface acoustic waves guided by surfaces overcoated with LB films of various thickness. Dramatic changes were observed in the Brillouin spectrum for as few as 11 monolayers. Upper limits for the elastic constants and velocity of sound in the LB films were estimated from the Brillouin components.

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Brillouin spectroscopy of Langmuir-Blodgett films

Abstract

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