2 papers
physics.optics2025
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…
physics.optics2025
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…