Anomalous stimulated Brillouin scattering in aqueous suspension of polystyrene nanospheres

For the first time, stimulated Brillouin scattering (SBS) spectra have been measured for a suspension of dielectric nanoparticles in water. We observed anomalous dependence of SBS spectra on the concentration of polystyrene nanospheres (74 nm diameter). The nonlinear five-fold increase in the SBS th...

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Bibliographic Details
Published in:Laser physics letters 2019-01, Vol.16 (1), p.15701
Main Authors: Bunkin, A F, Davydov, M A, Fedorov, A N, Lednev, V N, Pershin, S M
Format: Article
Language:English
Subjects:
Brillouin scattering
nanoparticles
stimulated scattering
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Summary:For the first time, stimulated Brillouin scattering (SBS) spectra have been measured for a suspension of dielectric nanoparticles in water. We observed anomalous dependence of SBS spectra on the concentration of polystyrene nanospheres (74 nm diameter). The nonlinear five-fold increase in the SBS threshold was determined for the nanosphere concentration range of 109 to 1015 cm−3.
ISSN:1612-2011
1612-202X
DOI:10.1088/1612-202X/aaef9a