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physics.optics2023
Signum phase mask differential microscopy
Jeeban Kumar Nayak, Niladri Modak, Sayan Ghosh +1
We propose and experimentally demonstrate a differential microscopy method to obtain simultaneous amplitude, phase, and quantitative polarization gradient imaging in a single exper…
physics.optics2023
Inhomogeneous Polarization Transformation Reveals PT-Transition in non-Hermitian Optical Beam Shift
Niladri Modak, Swain Ashutosh, Shyamal Guchhait +5
Despite its non-Hermitian nature, the transverse optical beam shift exhibits both real eigenvalues and non-orthogonal eigenstates. To explore this unexpected similarity to typical…