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pro vyhledávání: '"Roy, Sauvik"'
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 interrelations between the polarization and trajectory of light in case of n
Externí odkaz:
http://arxiv.org/abs/2411.14104
Coherent perfect absorption (CPA) has been a topic of considerable contemporary research interest. However, its implementation in practical applications has been limited, since it has been demonstrated only for plane waves till now. The issue for bea
Externí odkaz:
http://arxiv.org/abs/2411.11750
We demonstrate an effective and optimal strategy for generating spatially resolved longitudinal spin angular momentum (LSAM) in optical tweezers by tightly focusing first-order azimuthally radially polarized (ARP) vector beams with zero intrinsic ang
Externí odkaz:
http://arxiv.org/abs/2409.17856
Autor:
Kumar, Ram Nandan, Roy, Sauvik, Ranjan, Anand Dev, Gupta, Subhasish Dutta, Ghosh, Nirmalya, Banerjee, Ayan
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, instances where the back action of the particles influences and modifi
Externí odkaz:
http://arxiv.org/abs/2402.07655
Publikováno v:
Appl. Phys. Lett. 125, 071106 (2024)
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 index stratified medium. For input circularly polarized light, the bre
Externí odkaz:
http://arxiv.org/abs/2402.07638
In the recent past, optical tweezers incorporating a stratified medium have been exploited to generate complex translational and rotational dynamics in mesoscopic particles due to the coupling between the spin and orbital angular momentum of the ligh
Externí odkaz:
http://arxiv.org/abs/2204.04316
We propose a coherent optical method for creating negative refractive index (NRI) for a gaseous ensemble of ground-state polar molecules possessing both permanent electric and magnetic moments. Exploiting the pure rotational transition between the tw
Externí odkaz:
http://arxiv.org/abs/2004.09848
Publikováno v:
In Optics Communications 15 April 2021 485
Akademický článek
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Autor:
Panchapakesan, Balaji, Attias, André-Jean, Park, Wounjhang, Tiwari, Roshan, Roy, Sauvik, Haldar, Debasish, Banerjee, Ayan
Publikováno v:
Proceedings of SPIE; August 2021, Vol. 11802 Issue: 1 p118020C-118020C-10, 11683991p