9 citations · 14 across the 11 of their papers we have counts for
5 papers · 2 filters
A comprehensive study of the Spin-Hall effect of tightly focused linearly polarized light through a stratified medium in optical tweezers
Sramana Das, Sauvik Roy, Subhasish Dutta Gupta +2
The optical Spin-Hall effect originates from the interaction between the spin angular momentum (SAM) and extrinsic orbital angular momentum (OAM) of light, leading to mutual interr…
Quasi-coherent perfect absorption of counter-propagating vector beams of finite spatial extent through an absorptive slab
Sauvik Roy, Nirmalya Ghosh, Ayan Banerjee +1
Coherent perfect absorption (CPA) has been a topic of considerable contemporary research interest. Most of the theoretical treatment of CPA with beams, to the best of our knowledge…
Spatially resolved spin angular momentum mediated by spin-orbit interaction in tightly focused spinless vector beams in optical tweezers
Ram Nandan Kumar, Sauvik Roy, Subhasish Dutta Gupta +2
We demonstrate an effective and optimal strategy for generating spatially resolved longitudinal spin angular momentum (LSAM) in optical tweezers by tightly focusing first-order azi…
Inhomogeneous spin momentum induced orbital motion of birefringent particles in tight focusing of vector beams in optical tweezers
Ram Nandan Kumar, Sauvik Roy, Anand Dev Ranjan +3
Spin orbit interaction (SOI) due to tight focusing of light in optical tweezers has led to exciting and exotic avenues towards inducing rotation in microscopic particles. However,…
Observation of Larmor-like precession of a single birefringent particle due to spin-dependent forces in tilted optical tweezers
Sauvik Roy, Nirmalya Ghosh, Ayan Banerjee +1
We observe clear precessional motion of highly birefringent liquid crystal (LC) particles trapped in a spherically aberrated optical trap which is built around a tilted refractive…