Vortex beam propagates in the atmospheric environment, it interacts with the floating cloud,
fog, rain and other micro particles, the absorption and scattering effects will lead to the …

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 …

An optical vortex beam carrying fractional topological charge (TC) has become an
immerging field of interest due to its unique intensity distribution and fractional phase front in …

We propose an asymmetric image encryption scheme that employs chaotic phase masks
and vectorial light field. Vector light fields have non-uniform state of polarization across the …

Of late, generation of different kinds of optical vortex lattices has been gaining much
attention due to various applications. Several methods have been reported for the …

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 …

We propose an optical asymmetric technique for multiple-images that uses the feature of
arbitrary vector light. It involves structured phase masks that have been generated using …

Structured light, light tailored in its internal degrees of freedom, has become topical in
numerous quantum and classical information processing protocols. In this work, we harness …

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 …

The phase singularities and orbital angular momentum (OAM) of vortex beams propagating
in the thermally nonlinear moving atmosphere are first studied in detail. New discoveries are …