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JOURNALS // Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki // Archive

Pis'ma v Zh. Èksper. Teoret. Fiz., 2021 Volume 113, Issue 7, Pages 435–439 (Mi jetpl6393)

OPTICS AND NUCLEAR PHYSICS

Features of stimulated scattering in a colloidal solution with physicochemical properties changed under laser irradiation

M. A. Davydova, A. N. Fedorova, L. L. Chaikovb, A. F. Bunkina, V. B. Oshurkoca, S. M. Pershina

a Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow, 119991 Russia
b Lebedev Physical Institute, Russian Academy of Sciences, Moscow, 119991 Russia
c Moscow State University of Technology STANKIN, Moscow, 127055 Russia

Abstract: Lines of various forms of stimulated scattering have been revealed in the scattering spectrum excited by pulsed second-harmonic radiation of a YAG:Nd$^{3+}$ laser in an initially homogeneous aqueous colloidal solution (suspension) of polystyrene nanoballs. Dynamic light scattering measurements have shown that the laser-stimulated coagulation of some nanoballs with the formation of particles with an order-of-magnitude larger size occurs in the solution. An explanation of this phenomenon has been proposed.

Received: 10.03.2021
Revised: 12.03.2021
Accepted: 12.03.2021

DOI: 10.31857/S1234567821070016


 English version:
Journal of Experimental and Theoretical Physics Letters, 2021, 113:7, 423–427

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© Steklov Math. Inst. of RAS, 2024