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Proceedings Paper

Determination of the parameters of associates in dimethylformamide using stimulated low-frequency Raman scattering
Author(s): Mikhail A. Shevchenko; Nikolay V. Tcherniega; Anna D. Kudryavtseva; Tatiana V. Mironova; Evgenia A. Slyusareva; Mishik A. Kazaryan
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Paper Abstract

Stimulated low-frequency Raman scattering (SLFRS) spectrum in dimethylformamide (DMF) was registered in the range from 0.1 to 1 cm-1. SLFRS is a result of the laser pulses interaction with acoustic oscillations of the associates, therefore knowledge of the SLFRS frequency shifts (and consequently associates eigenvibrations frequencies) gives possibility to estimate the size of DMF associates. Scattering was excited by pulses of a ruby laser with a narrow spectral line and recorded by Fabri-Perot interferometers. In the scattering spectrum SLFRS component was recorded with a frequency shift of 0.33 cm–1 (10 GHz), which corresponds to the size of associates of about 150 nm. Simultaneously with the SLFRS, stimulated Brillouin scattering was recorded in the backward scattering spectrum.

Paper Details

Date Published: 11 December 2019
PDF: 5 pages
Proc. SPIE 11322, XIV International Conference on Pulsed Lasers and Laser Applications, 113222H (11 December 2019); doi: 10.1117/12.2550825
Show Author Affiliations
Mikhail A. Shevchenko, P. N. Lebedev Physical Institute (Russian Federation)
Nikolay V. Tcherniega, P. N. Lebedev Physical Institute (Russian Federation)
Anna D. Kudryavtseva, P. N. Lebedev Physical Institute (Russian Federation)
Tatiana V. Mironova, P. N. Lebedev Physical Institute (Russian Federation)
Evgenia A. Slyusareva, Siberian Federal Univ. (Russian Federation)
Mishik A. Kazaryan, P. N. Lebedev Physical Institute (Russian Federation)


Published in SPIE Proceedings Vol. 11322:
XIV International Conference on Pulsed Lasers and Laser Applications
Victor F. Tarasenko; Anton V. Klimkin; Maxim V. Trigub, Editor(s)

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