2 citations · 5 across the 6 of their papers we have counts for
6 papers · 1 filter
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…
Momentum domain polarization probing of forward and inverse spin Hall effect of leaky modes in plasmonic crystals
Jeeban Kumar Nayak, Harley Suchiang, Subir Kumar Ray +3
Simultaneous manifestation of both forward and inverse photonic Spin Hall effect in geometrically tailored anisotropic waveguided plasmonic crystal system is observed through the e…
Probing the rotational spin-Hall effect in higher order Gaussian beams
Ram Nandan Kumar, Yatish, Subhasish Dutta Gupta +2
Spin-to-orbit conversion of light is a dynamical optical phenomenon in non-paraxial fields leading to various manifestations of the spin and orbital Hall effect. However, effects o…
Direct observation of the effects of spin dependent momentum of light in optical tweezers
Debapriya Pal, Subhasish Dutta Gupta, Nirmalya Ghosh +1
We demonstrate that tight focusing of a circularly polarized Gaussian beam in optical tweezers leads to spin-momentum locking - with the transverse spin angular momentum density be…
Transverse spin and transverse momentum in structured optical fields
Sudipta Saha, Nirmalya Ghosh, Subhasish Dutta Gupta
It has been recently recognized that in addition to the conventional longitudinal angular momentum, structured (inhomogeneous) optical fields exhibit helicity-independent transvers…
Cavity Enhanced Interference of Orthogonal Modes in a Birefringent Medium
Kiran Kolluru, Subhasish Dutta Gupta
Interference of orthogonal modes in a birefringent crystal is known to lead to interesting physical effects (Solli et al., Phys. Rev. Lett. 91, 143906 (2003)). In this paper we sho…