Abstract
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.
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Funding
The work was supported in part by the Russian Foundation for Basic Research, Projects 18-52-00038, 18-52-16016, and 19-02-00013.
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Bunkin, A.F., Davydov, M.A., Pershin, S.M. et al. Laser-Pulse Excitation of Coherent Vibrations of Dielectric Nanospheres in an Aqueous Suspension. Phys. Wave Phen. 27, 187–191 (2019). https://doi.org/10.3103/S1541308X19030038
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DOI: https://doi.org/10.3103/S1541308X19030038