Spin-selective scattering modes in a disordered anisotropic optical medium
Ankit Kumar Singh (Indian Institute of Science Education and Research Kolkata)
Antariksha Das (TU Delft - QID/Tittel Lab, TU Delft - QuTech Advanced Research Centre)
Sourin Das (Indian Institute of Science Education and Research Kolkata)
Nirmalya Ghosh (Indian Institute of Science Education and Research Kolkata)
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Abstract
The geometric and dynamic phases have competing effects as far as the scattering of light from an inhomogeneous anisotropic optical medium is concerned. If fine-tuned appropriately, these effects can completely cancel each other for a chosen spin component while having an additive effect on the orthogonal component. Here, we show a manifestation of extraordinary spin-selective modes in the Fourier spectrum of a Gaussian beam transmitted through an anisotropic disordered medium. We realize the concept by using a twisted nematic liquid-crystal-based spatial light modulator with random gray-level distributions for an incident Gaussian beam.