Journal
PHYSICAL REVIEW LETTERS
Volume 114, Issue 11, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.114.113902
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Funding
- Spanish Ministry of Economy and Competitiveness [FIS2013-41184-P]
- Department of Industry of the Government of the Basque Country [ETORTEK IE14-393 NANOGUNE' 14]
- Department of Education and Culture of the Basque Country [IT756-13]
- Spanish Ministry of Education, Culture, and Sport [AP-2012-4204]
- Spanish MINECO [FIS2012-36113]
- IKERBASQUE
- Australian Research Council [FT110100924]
- Australian Research Council [FT110100924] Funding Source: Australian Research Council
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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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