Christiansen effect in disperse systems with resonant absorption

We discuss the results of experimental studies of competition of absorption and scattering of laser radiation propagating in dispersive media with resonant absorption. As media under study, use is made of a suspension of polystyrene particles in solutions of rhodamine 6G in ethylene glycol probed by...

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Bibliographic Details
Published in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2012-01, Vol.42 (1), p.82-86
Main Authors: Zimnyakov, D A, Isaeva, Elmira A, Isaeva, A A
Format: Article
Language:English
Subjects:
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
DYES
GLYCOLS
LASER RADIATION
MODULATION
POLYSTYRENE
RESONANCE ABSORPTION
SCATTERING
SUSPENSIONS
WAVELENGTHS
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Summary:We discuss the results of experimental studies of competition of absorption and scattering of laser radiation propagating in dispersive media with resonant absorption. As media under study, use is made of a suspension of polystyrene particles in solutions of rhodamine 6G in ethylene glycol probed by laser light with a wavelength of 532 nm. It is found that an increase in the dye concentration leads to an increase in optical transmittance of suspensions and an increase in speckle modulation of the forward-scattered radiation. We interpret these features as a manifestation of Christiansen effect in disperse systems with resonance absorption.
ISSN:1063-7818
1468-4799
DOI:10.1070/QE2012v042n01ABEH014703