4 citations · 5 across the 4 of their papers we have counts for
4 papers
Generating non-diffracting bottle beams with a flat multi-level diffractive lens
Andra Naresh Kumar Reddy, Srinivasa Rao Allam, Ashish Tiwari +4
We introduce a novel method for creating a high-quality, sharply defined, non-diffracting optical bottle beam by focusing a Bessel beam propagating through a flat multi-level diffr…
Optical Quasiparticles: Skyrmions, Bimerons and Skyrmionic Hopfions in Paraxial Laser Beams
Srinivasa Rao Allam, Yuto Yoneda, Takashige Omatsu
Skyrmions, merons, bimerons, and skyrmionic hopfions are quasiparticles which have stable topological textures. They have been observed across multiple physical domains including n…
An intriguing interpretation of Cosine beams
Srinivasa Rao Allam
We provide a simple analysis based on ray optics and Dirac notation for one and two-dimensional Cosine beams. We then went on to understand the properties of the Bessel beams. For…
Spatial self-phase modulation in the H2TPP(OH)4 doped in Boric Acid Glass
Srinivasa Rao Allam, Mudasir H Dar, N Venkatramaiah +2
Self-diffraction rings or spatial self-phase modulation (SSPM) was observed in tetra-phenyl porphyrin derivative 5,10,15,20 - meso-tetrakis (4-hydroxyphenyl) porphyrin (H2TPP(OH)4)…