Liquid crystal devices for vector vortex beams manipulation and quantum information applications

ZX Li, YP Ruan, P Chen, J Tang, W Hu, KY **a… - Chinese optics …, 2021 - opg.optica.org
Vector vortex beams (VVBs) have attracted significant attention in both classical and
quantum optics. Liquid crystal (LC), beyond its applications in information display, has …

Spatial light modulation for femtosecond laser manufacturing: Current developments and challenges

X Zang, ZT Liu, YS Xu, Y Wang, Q Wang, ZZ Li… - Science China …, 2024 - Springer
Since the invention of lasers, spatial-light-modulated laser processing has become a
powerful tool for various applications. It enables multidimensional and dynamic modulation …

Formation of singular light fields using phase calibrated spatial light modulator

P Kumar, NK Nishchal - Optics and Lasers in Engineering, 2021 - Elsevier
In this paper, we demonstrate a convenient method to obtain the phase characterization
curve of spatial light modulator (SLM) using polarimetry. Unlike existing polarimetric …

Arbitrary vector beam encoding using single modulation for information security applications

P Kumar, A Fatima, NK Nishchal - IEEE Photonics Technology …, 2021 - ieeexplore.ieee.org
Features of vector beam such as its spatial degree of freedom and intensity-based
measurements are useful in information encoding but often require a complex optical-setup …

Non-interferometric technique to realize vector beams embedded with polarization singularities

P Kumar, SK Pal, NK Nishchal, P Senthilkumaran - JOSA A, 2020 - opg.optica.org
In this paper, we present a simple and flexible non-interferometric method to generate
various polarization singularity lattice fields. The proposed method is based on a double …

Generation of structured light beams by dual phase modulation with a single spatial light modulator

M Baliyan, A Shikder, NK Nishchal - Physica Scripta, 2023 - iopscience.iop.org
Precise control of amplitude and wavefront of optical fields are prerequisites for many
applications, especially in singular optics. This has led to the increasing efforts for …

Color image encryption using vectorial light field through a compact optical set-up

P Kumar, NK Nishchal, A Alfalou - Journal of Optics, 2022 - iopscience.iop.org
Vector light fields have spatially non-uniform polarization across the transverse plane. In this
study, a color image encryption scheme has been proposed in which the data is encoded …

Analysis of hybrid vector beams generated with a detuned Q-plate

JC Quiceno-Moreno, D Marco, MM Sánchez-López… - Applied Sciences, 2020 - mdpi.com
Featured Application Optical Communications; Snapshot Polarimetry; Micromachining;
Particle Manipulation. Abstract We use a tunable commercial liquid-crystal device tuned to a …

Encoding complex amplitude information onto phase-only diffractive optical elements using binary phase Nyquist gratings

JA Davis, ED Wolfe, I Moreno, DM Cottrell - OSA Continuum, 2021 - opg.optica.org
We reexamine a simple technique for encoding complex amplitude information onto a phase-
only spatial light modulator (SLM). The basis for the approach is to spatially vary the …

Phase-shifting common-path polarization self-interferometry for evaluating the reconstruction of holograms displayed on a phase-only display

E Nabadda, P García-Martínez… - Frontiers in …, 2022 - frontiersin.org
In this work we apply a phase-shifting interferometry (PSI) to evaluate the reconstruction of
complex-valued holograms displayed onto a phase-only spatial light modulator (SLM). The …