3 papers
physics.optics2025
Effective SU(2) gadget: holonomic walk on higher-order Poincaré sphere
Mohammad Umar, Sarvesh Bansal, Paramasivam Senthilkumaran
In a manner commensurate to the SU(2) gadget for the Poincaré sphere, which involves a combination of two quarter-wave plates and one half-wave plate regardless of their sequentia…
physics.optics2025
Interferometric method to detect degenerate index states of polarization singularities
Kapil K. Gangwar, Sarvesh Bansal, P. Senthilkumaran
An innovative interference-based method for detecting degenerate index states of polarization singularity is presented here. Index degeneracy occurs when different combinations of…
physics.optics2025
Gadget to realize arbitrary polarization transformation on a higher order Poincaré sphere
Sarvesh Bansal, P. Senthilkumaran
Designing a single element for all polarization transformations on a Poincaré sphere is impossible due to practical limitations and hence a combination of few standard wave-plates…