Laser-Pulse Excitation of Coherent Vibrations of Dielectric Nanospheres in an Aqueous Suspension

A. F. Bunkin; M. A. Davydov; S. M. Pershin; N. V. Suyazov; A. N. Fedorov

doi:10.3103/S1541308X19030038

Laser-Pulse Excitation of Coherent Vibrations of Dielectric Nanospheres in an Aqueous Suspension

作者: Bunkin A.F.¹, Davydov M.A.¹, Pershin S.M.¹, Suyazov N.V.¹, Fedorov A.N.¹
隶属关系:
1. Prokhorov General Physics Institute of the Russian Academy of Sciences
期: 卷 27, 编号 3 (2019)
页面: 187-191
栏目: Laser Spectroscopy
URL: https://journals.rcsi.science/1541-308X/article/view/218217
DOI: https://doi.org/10.3103/S1541308X19030038
ID: 218217

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Excitation of coherent vibrations of different-sized polystyrene nanospheres at their acoustic eigenmodes in aqueous suspensions is observed in the laser pulse field. To substantiate the observed features, a model of interaction of an electromagnetic field with a dielectric in heterogenous media is developed which allows eigenmodes of nanospheres in a suspension to be calculated. The estimations are in satisfactory agreement with the experimental data.