Abstract
For the first time, stimulated dynamic scattering of a light wave in a liquid nanodispersed medium is observed, which is caused by phase modulation of the dipole moment of the suspension nanoparticles subjected to acoustically induced vibrations in the electromagnetic field. Experiments have been carried out in an aqueous suspension of amorphous silicon dioxide SiO2 nanospheres ≈100 and ≈350 nm in diameter under stimulated scattering excited by the second-harmonic radiation of the pulsed single-mode Nd3+:YAG laser. In addition to the first Stokes component of the stimulated Brillouin scattering with the frequency shift Ω typical of a solvent, a scattering line with the frequency shift ≈2Ω is observed in full agreement with the theory developed in the work.
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Funding
The work was supported by the Russian Science Foundation, project no. 22-22-00153.
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Translated by M. Potapov
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Bunkin, A.F., Davydov, M.A., Mikhalevich, V.G. et al. Dynamic Stimulated Low-Frequency Light Scattering in a Nanodispersed Liquid Medium. Phys. Wave Phen. 31, 15–20 (2023). https://doi.org/10.3103/S1541308X23010028
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DOI: https://doi.org/10.3103/S1541308X23010028