Isotropically polarized speckle patterns

Mikolaj K. Schmidt; Javier Aizpurua; Xavier Zambrana-Puyalto; Xavier Vidal; Gabriel Molina-Terriza; Juan José Sáenz

doi:10.1103/PhysRevLett.114.113902

Isotropically polarized speckle patterns

Mikolaj K. Schmidt, Javier Aizpurua, Xavier Zambrana-Puyalto, Xavier Vidal, Gabriel Molina-Terriza, Juan José Sáenz

Research output: Contribution to journal › Article › peer-review

29 Citations (Scopus)

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Abstract

The polarization of the light scattered by an optically dense and random solution of dielectric nanoparticles shows peculiar properties when the scatterers exhibit strong electric and magnetic polarizabilities. While the distribution of the scattering intensity in these systems shows the typical irregular speckle patterns, the helicity of the incident light can be fully conserved when the electric and magnetic polarizabilities of the scatterers are equal. We show that the multiple scattering of helical beams by a random dispersion of "dual" dipolar nanospheres leads to a speckle pattern exhibiting a perfect isotropic constant polarization, a situation that could be useful in coherent control of light as well as in lasing in random media.

Original language	English
Article number	113902
Pages (from-to)	1-5
Number of pages	5
Journal	Physical Review Letters
Volume	114
Issue number	11
DOIs	https://doi.org/10.1103/PhysRevLett.114.113902
Publication status	Published - 20 Mar 2015

Bibliographical note

Schmidt, M. K., Aizpurua, J., Zambrana-Puyalto, X., Vidal, X., Molina-Terriza, G., & SÃ¡enz, J. J. (2015). Isotropically polarized speckle patterns. Physical review letters, 114(11), 113902. Copyright 2015 by the American Physical Society. The original article can be found at http://dx.doi.org/10.1103/PhysRevLett.114.113902.

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10.1103/PhysRevLett.114.113902

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abstract = "The polarization of the light scattered by an optically dense and random solution of dielectric nanoparticles shows peculiar properties when the scatterers exhibit strong electric and magnetic polarizabilities. While the distribution of the scattering intensity in these systems shows the typical irregular speckle patterns, the helicity of the incident light can be fully conserved when the electric and magnetic polarizabilities of the scatterers are equal. We show that the multiple scattering of helical beams by a random dispersion of {"}dual{"} dipolar nanospheres leads to a speckle pattern exhibiting a perfect isotropic constant polarization, a situation that could be useful in coherent control of light as well as in lasing in random media.",

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AU - Molina-Terriza, Gabriel

AU - Sáenz, Juan José

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