4 papers · 1 filter
Extreme Cross-polarization Extinction Method for Quantification of Residual Crystal Anisotropy
Upasana Baishya, Nirmal K Viswanathan
The high-extinction cross-polarization measurement of a paraxial laser beam results in a Hermite-Gaussian ()-like four-lobes with a dark-centered cross pattern. The…
Generic Optical Singularities in Brewster-reflected Post-paraxial Beam-fields
Anirban Debnath, Nirmal K. Viswanathan
Brewster-reflection of a post-paraxial optical beam at a plane dielectric interface unravels fundamentally significant optical singularity dynamics. We express the simulated field-…
Spin-orbit Interaction-mediated Measurement of Surface Chirality
Upasana Baishya, Nirmal K. Viswanathan
The spin-orbit interaction in a focused-reflected beam of light results in spatially non-uniform polarization in the beam cross-section due to the superposition of orthogonal field…
Experimental Measurement of Transverse Spin Dynamics in the Nonparaxial Focal Region
Nitish Kumar, Cyriac Raju, Dinesh N. Naik +1
The superposition of complex optical fields in three-dimension (3D) is the basis of several non-trivial wave phenomena. Significant among them are the non-uniform polarization dist…