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Prof. Dr. Vasileios Lempesis

Professor

Professor

Sciences
Building 4, 2B1
publication
Journal Article
2025

Optical Characteristics of Bessel-Gaussian Beams

A physically realizable set of optical Bessel beams is identified as the Bessel-Gaussian (BG) mode, which can be obtained by modulating the radial oscillations of the Bessel beams with a Gaussian profile. The BG type mode can possess orbital angular momentum as well as optical spin. We explore the optical properties of the BG modes for a fixed power, particularly their spin and angular momenta, energy, and helicity. The findings are compared to those of the Truncated Optical Bessel (TOB) modes and the Laguerre-Gaussian (LG) modes.

Volume Number
541
Magazine \ Newspaper
Physics Letters A
Pages
130407
more of publication
publications

We study the quantum dynamics of cold atoms initially confined in a helical optical tube (HOT) and subsequently released into free space. This helicoidal potential, engineered via structured light…

by Amine Jaouadi, Andreas Lyras, and Vasileios E. Lembessis
2025
publications

Advances in lasers and atomic clock technologies have enabled delicate measurements to be made of minute relativistic effects. Here, we propose that such developments should lead to the…

by V. E. Lembessis, K. Koksal, M. Babiker, and J. Yuan
2025
publications

A physically realizable set of optical Bessel beams is identified as the Bessel-Gaussian (BG) mode, which can be obtained by modulating the radial oscillations of the Bessel beams with a…

by M. Alquraishi, V.E. Lembessis
2025