Stimulated concentration (diffusion) light scattering on nanoparticles in a liquid suspension

A nonlinear growth of the light scattering intensity has been observed and the frequency shift of the spectral line of scattered light has been measured in light backscattered in suspensions of diamond and latex nanoparticles in water. The shift corresponds to the HWHM of the line of spontaneous sca...

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Bibliographic Details
Published in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2016-01, Vol.46 (6), p.548-554
Main Authors: Burkhanov, I.S., Krivokhizha, S.V., Chaikov, L.L.
Format: Article
Language:English
Subjects:
ABUNDANCE
BACKSCATTERING
BEAMS
CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
concentration scattering
CONVECTION
correlation spectroscopy
DIAMONDS
diffuse scattering
DIFFUSION
Excitation spectra
FIBERS
Frequency shift
LATEX
LIGHT SCATTERING
liquid
LIQUIDS
Luminous intensity
NANOPARTICLES
PROBES
Spectral lines
SPECTRAL SHIFT
stimulated light scattering
stimulated Mie scattering
SUSPENSIONS
WATER
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Summary:A nonlinear growth of the light scattering intensity has been observed and the frequency shift of the spectral line of scattered light has been measured in light backscattered in suspensions of diamond and latex nanoparticles in water. The shift corresponds to the HWHM of the line of spontaneous scattering on particles. We may conclude that there exists stimulated concentration (diffusion) light scattering on variations of the particle concentration, which is also called the stimulated Mie scattering. In a fibre probe scheme, the growth of the shift of the scattered spectral line is observed with an increase in the exciting beam power. The variation of the frequency shift with an increase in the exciting power is explained by convection in liquid.
ISSN:1063-7818
1468-4799
DOI:10.1070/QEL15700