Phase singularities to polarization singularities

Ruchi, P Senthilkumaran, SK Pal - International Journal of …, 2020 - Wiley Online Library
Polarization singularities are superpositions of orbital angular momentum (OAM) states in
orthogonal circular polarization basis. The intrinsic OAM of light beams arises due to the …

Measuring the topological charge of an optical vortex by using a tilted convex lens

P Vaity, J Banerji, RP Singh - Physics letters a, 2013 - Elsevier
We demonstrate, analytically and experimentally, a simple, but effective method to
determine the topological charge of an optical vortex by using a spherical bi-convex lens, a …

[图书][B] Optical methods of measurement: wholefield techniques

R Sirohi - 2018 - taylorfrancis.com
Optical Methods of Measurement: Wholefield Techniques, Second Edition provides a
comprehensive collection of wholefield optical measurement techniques for engineering …

[图书][B] Singularities in physics and engineering

P Senthilkumaran - 2024 - iopscience.iop.org
Singularities are ubiquitous in nature and generate high levels of interest and activity among
scientists. At a singularity, a parameter of interest becomes indeterminate, a single point at …

Self-referenced interferometry for single-shot detection of vector-vortex beams

P Kumar, NK Nishchal, T Omatsu, AS Rao - Scientific Reports, 2022 - nature.com
Vector-vortex (VV) beams are of significant interest for various applications. There have
been substantial efforts toward developing a fast and efficient method for the …

Single-slit diffraction of an optical beam with phase singularity

DP Ghai, P Senthilkumaran, RS Sirohi - Optics and Lasers in Engineering, 2009 - Elsevier
Single-slit diffraction of an optical beam carrying phase singularity is presented. Due to
azimuthal phase dependence, the diffraction pattern of the singular beam differs from that of …

Phase singularities to polarization singularities

P Senthilkumaran, SK Pal - International Journal of Optics, 2020 - search.proquest.com
Polarization singularities are superpositions of orbital angular momentum (OAM) states in
orthogonal circular polarization basis. The intrinsic OAM of light beams arises due to the …

Modified Mach–Zehnder interferometer for determining the high-order topological charge of Laguerre–Gaussian vortex beams

P Kumar, NK Nishchal - JOSA A, 2019 - opg.optica.org
This study demonstrates a self-referenced interferometric method to estimate the magnitude
and sign of a high-order topological charge (TC) carried by incoming optical vortex beams …

Direct generation of 523 nm orbital Poincaré mode from a diode-pumped Pr3+:LiYF4 laser with an off-axis optical needle pumping geometry

A Srinivasa Rao, T Miike, K Miamoto, T Omatsu - Optics Express, 2021 - opg.optica.org
We demonstrate an ultra-compact (8 mm-long) green orbital Poincaré Pr^ 3+: LiYF_4 (YLF)
laser, in which the intracavity lasing modes are represented as eigenmodes on an …

Higher-order Stokes-parameter correlation to restore the twisted wave front propagating through a scattering medium

T Sarkar, R Parvin, MM Brundavanam, RK Singh - Physical Review A, 2021 - APS
We propose and experimentally demonstrate a noninterferometric method to quantitatively
determine the topological charge and complete phase structure of a vortex beam scrambled …