Conditions for circular polarisation retention in highly scattering media

We analyse conditions for circular polarisation retention in multiple scattering of light by disordered media. The effect of circular polarisation memory is shown to appear when the depolarisation cross section is much smaller than the transport cross section of elastic scattering. This situation oc...

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Bibliographic Details
Published in:Quantum electronics (Woodbury, N.Y.) N.Y.), 2016-01, Vol.46 (10), p.947-952
Main Authors: Gorodnichev, E.E., Kuzovlev, A.I., Rogozkin, D.B.
Format: Article
Language:English
Subjects:
ABSORPTION
ATOMIC AND MOLECULAR PHYSICS
circular polarisation
Circularity
CROSS SECTIONS
depolarisation
ELASTIC SCATTERING
LIGHT SCATTERING
Media
Mie particle
MULTIPLE SCATTERING
multiple scattering of polarised light
PARTIAL WAVES
PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
POLARIZATION
Quantum electronics
RETENTION
Scattering
Transport
WAVELENGTHS
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Summary:We analyse conditions for circular polarisation retention in multiple scattering of light by disordered media. The effect of circular polarisation memory is shown to appear when the depolarisation cross section is much smaller than the transport cross section of elastic scattering. This situation occurs in media composed of large (compared to the wavelength of light) weakly refracting scatterers and of resonant Mie particles. Absorption in the medium is shown to result in a significant increase in the depolarisation length.
ISSN:1063-7818
1468-4799
DOI:10.1070/QEL16202