Optical image/data encryption techniques are mostly based on the manipulation of spatial
distributions of light's amplitude, phase, and polarization. Information encoding with phase …

Over the past 36 years much research has been carried out on Bessel beams (BBs) owing to
their peculiar properties, viz non-diffraction behavior, self-healing nature, possession of well …

Optical cryptosystems mostly use spatial distributions of amplitude, phase, and polarization
of light to encrypt two-dimensional data/image. In this letter, we demonstrate the use of light …

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 …

This paper presents an efficient method for the generation of scalar as well as vector modes
of Bessel–Gaussian (BG) beams by utilizing a computer generated phase-only mask …

In recent years, optical information processing has become increasingly important due to its
ability to handle large amounts of data efficiently. Amplitude, phase, spatial frequency …

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 …

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 …

A liquid crystal Spatial Light Modulator (SLM) can be used in various ways to produce vector-
vortices. Superposition of scalar vortices with orthogonal polarization is a common …

We present a method to study both static and dynamic phase errors in a phase-only spatial
light modulator (SLM) caused by surface irregularities and an imperfect response of each …