Determination of the parameters of associates in dimethylformamide using stimulated low-frequency Raman scattering

Описание

Тип публикации: доклад, тезисы доклада, статья из сборника материалов конференций

Конференция: XIV International Conference on Pulsed Lasers and Laser Applications, AMPL 2019

Год издания: 2019

Идентификатор DOI: 10.1117/12.2550825

Ключевые слова: Associates, Eigenfrequencies, Laser, Spectrum, Stimulated scattering

Аннотация: 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 frequencПоказать полностьюies) 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. © COPYRIGHT SPIE. Downloading of the abstract is permitted for personal use only.

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Издание

Журнал: Proceedings of SPIE - The International Society for Optical Engineering

Выпуск журнала: Vol. 11322

Номера страниц: 113222

ISSN журнала: 0277786X

Издатель: SPIE

Авторы

  • Shevchenko M.A. (P. N. Lebedev Physical Institute of the RAS, Leninsky pr, 53, Moscow, 119991, Russian Federation)
  • Tcherniega N.V. (P. N. Lebedev Physical Institute of the RAS, Leninsky pr, 53, Moscow, 119991, Russian Federation)
  • Kudryavtseva A.D. (P. N. Lebedev Physical Institute of the RAS, Leninsky pr, 53, Moscow, 119991, Russian Federation)
  • Mironova T.V. (P. N. Lebedev Physical Institute of the RAS, Leninsky pr, 53, Moscow, 119991, Russian Federation)
  • Slyusareva E.A. (Siberian Federal University, Svobodny Ave., 79, Krasnoyarsk, 660041, Russian Federation)
  • Kazaryan M.A. (P. N. Lebedev Physical Institute of the RAS, Leninsky pr, 53, Moscow, 119991, Russian Federation)

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