Isotropically polarized speckle patterns
arXiv:1409.8048 · doi:10.1103/PhysRevLett.114.113902
Abstract
The polarization of the light scattered by an optically dense, 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 nano-spheres 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.
5 pages, 3 figures
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Cited by in corpus (12)
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- Exact dipolar moments of a localized electric current distribution
- Scattering asymmetry and second Kerker condition
- Enhanced spin-orbit optical mirages from dual nanospheres
- Core-shell particles as building blocks for systems with high duality symmetry
- Achieving strongly negative scattering asymmetry factor in random media composed of dual-dipolar particles
- Far-field measurements of vortex beams interacting with nanoholes
- Multiple scattering of polarized light in disordered media exhibiting short-range structural correlations
- Analysis of dependent scattering mechanism in hard-sphere Yukawa random media
- Characterizing the Backscattered Spectrum of Mie Spheres
- Structural correlations and dependent scattering mechanism on the radiative properties of random media
- Electromagnetic Duality Symmetry-Protected Dirac-Like Cones