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 …
orthogonal circular polarization basis. The intrinsic OAM of light beams arises due to the …
Self-referenced interferometry for single-shot detection of vector-vortex beams
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 …
been substantial efforts toward developing a fast and efficient method for the …
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 …
orthogonal circular polarization basis. The intrinsic OAM of light beams arises due to the …
Analysis of the wavefront aberrations based on neural networks processing of the interferograms with a conical reference beam
Recently, intelligent data analysis and neural networks are increasingly used to detect the
wavefront by interferograms and digital holograms. In this case, there is significant freedom …
wavefront by interferograms and digital holograms. In this case, there is significant freedom …
Self-referenced interference of laterally displaced vortex beams for topological charge determination
P Kumar, NK Nishchal - Optics Communications, 2020 - Elsevier
The optical vortex beam having helical phasefront carries well-defined orbital angular
momentum (OAM) which can be specified by its topological charge (TC). This study …
momentum (OAM) which can be specified by its topological charge (TC). This study …
Optical vortex interferometer: An overview of interferogram demodulation methods for dynamic phase measurement
J Dong, E Zhao, L Xie, Y Li, Z Tian, X Xie - Optics and Lasers in …, 2024 - Elsevier
Different interferogram demodulation methods of optical vortex interferometer (OVI) have
been proposed over the last two decades aiming at dynamic phase measurement. Taking …
been proposed over the last two decades aiming at dynamic phase measurement. Taking …
High-precision micro-displacement measurement in a modified reversal shearing interferometer using vortex beams
H Gao, D Yang, X Hu, W He, Z Yang, Z Liu - Optics Communications, 2023 - Elsevier
We propose a novel micro-displacement measurement system that employs a modified
reversal shearing interference structure based on vortex beam interference. The micro …
reversal shearing interference structure based on vortex beam interference. The micro …
Phase response optimization of a liquid crystal spatial light modulator with partially coherent light
P Kumar, NK Nishchal - Applied Optics, 2021 - opg.optica.org
This paper demonstrates a method to determine and calibrate the modulation characteristics
of a liquid crystal spatial light modulator (SLM) for on-axis phase response with partially …
of a liquid crystal spatial light modulator (SLM) for on-axis phase response with partially …
Detection of vortex charge and beam displacement by wavefront division interferometry
In this work, a wavefront division interferometry method for determining the topological
charge (l) of vortex beams (VB) is proposed and utilized for the detection of beam …
charge (l) of vortex beams (VB) is proposed and utilized for the detection of beam …
Topological charge identification of vortex beams through optical correlation
Recently optical beams containing orbital angular momentum have gained considerable
attention due to their wide range of uses. In all the applications, accurate determination of …
attention due to their wide range of uses. In all the applications, accurate determination of …