Accurate mode purity measurement of ring core fibers with large mode numbers from the intensity distribution only

Z Shi, B Mao, Z Wang, Y Liu - Photonics Research, 2023 - opg.optica.org
Mode purity measurement is crucial for various applications utilizing few-mode fibers and
related devices. In this paper, we propose a simple and accurate method for measuring the …

Inhomogeneous-spin-momentum-induced orbital motion of birefringent particles in tight focusing of vector beams in optical tweezers

RN Kumar, AD Ranjan, S Roy, SD Gupta, N Ghosh… - Physical Review A, 2024 - APS
Spin-orbit interaction (SOI) due to the tight focusing of light in optical tweezers has led to
exciting and exotic avenues towards inducing rotation in microscopic particles. However …

Probing dual asymmetric transverse spin angular momentum in tightly focused vector beams in optical tweezers

RN Kumar, JK Nayak, SD Gupta… - Laser & Photonics …, 2024 - Wiley Online Library
The spin‐orbit interaction (SOI) of light generated by tight focusing in optical tweezers is
regularly employed in generating angular momentum‐both spin and orbital‐the effects …

Enhanced beam shifts mediated by bound states in continuum

SS Biswas, G Remesh, VG Achanta, A Banerjee… - Journal of …, 2023 - iopscience.iop.org
The interaction of light beams with resonant structures has led to the development of various
optical platforms for sensing, particle manipulation, and strong light–matter interaction. In the …

Accurate and noise-robust mode decomposition by analyzing the intensity distribution of a few-mode ring core fiber

Z Shi, B Mao, Z Wang, YG Liu - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
Mode decomposition is a fundamental issue in applications that exploit few-mode fibers.
With a prior knowledge of eigenmode field distribution, the amplitudes and phases of each …

Enantioselectivity in Chiral Crystallization Driven by the Canonical and Spin Momentum Forces of Optical Vortex Beams

AC Cheng, C Pin, T Sugiyama… - The Journal of Physical …, 2024 - ACS Publications
Chiral perturbation can affect chiral crystallization, wherein achiral molecules form a chiral
crystal, leading to an imbalance of the induction between two chiral crystals. Chiral light …

Geometric spin Hall effect and polarization-dependent transformations in the oblique section of a paraxial light beam

AY Bekshaev, VB Ternovsky - Physica Scripta, 2023 - iopscience.iop.org
The spatial structure of light beams is usually considered in the transverse cross sections but
supplementary analysis of the field pattern across an oblique plane may disclose additional …

The role of phase–polarization interactions in the laser processing of polarization-sensitive materials

A Porfirev, S Khonina, D Porfirev, N Ivliev - Optics Letters, 2024 - opg.optica.org
Taking into account phase–polarization interactions is crucial for the formation of spatially
structured laser beams. The effects that arise in this context can lead to the modulation of …

Singularities splitting phenomenon for the superposition of hybrid orders structured lights and the corresponding interference discrimination method

B Mao, Y Liu, W Chang, L Chen, M Feng, H Guo… - …, 2022 - degruyter.com
It is the basic characteristic of pure vortex light that there is a phase singularity at the origin.
Such a singularity may be multiple degenerate, which determines the order of vortex light …

Manipulating the transverse spin angular momentum and Belinfante momentum of spin-polarized light by a tilted stratified medium in optical tweezers

S Roy, N Ghosh, A Banerjee, SD Gupta - Physical Review A, 2022 - APS
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 …