6 papers
Surface Plasmon Mediated Giant Goos-Hanchen and Imbert-Fedorov Shifts on a Corrugated Metal Surface
Arani Maiti, Sauvik Roy, Abhi Mondal +3
Enhanced beam shifts mediated by surface plasmon resonance (SPR) at metal-dielectric interfaces have been widely investigated. However, research on the associated Imbert-Fedorov or…
Spin-Split Dispersion of Leaky Surface plasmons in Inversion- Symmetric System
Sujit Rajak, Nishkarsh Kumar, Dheeraj Yadav +6
Spin-dependent dispersion and Rashba effect are manifestations of universal spin orbit interaction associated with the breaking of the spatial inversion symmetry in condensed matte…
Can a vector beam be critically coupled leading to perfect absorption?
Sauvik Roy, Nirmalya Ghosh, Ayan Banerjee +1
Critical coupling has emerged as a prominent area of research in recent years. However, most theoretical models are based on scalar theories (and occasionally coupled mode theories…
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…