Diffracting and Non-diffracting random fields
Abstract
We have generated and propagated both diffracting and non-diffracting speckles using the scattering of perfect optical vortices. The diffracting speckles have been realized in the near field and non-diffracting speckles have been realized in the far field, that is after taking the Fourier transform of near-field speckles using a simple convex lens. The exact analytical expressions have been provided for the size of both diffracting as well as non-diffracting speckles and compared with our experimental results. We found that the experimental results are in good agreement with the theoretical results. These results may find applications in classical cryptography and communication as we have both varying and non-varying random field patterns with propagation distance.
Cite
@article{arxiv.2111.12388,
title = {Diffracting and Non-diffracting random fields},
author = {Patnala Vanitha and Bhargavi M and Venkateswarlu Annapureddy and Salla Gangi Reddy and Yoko Miyamoto and R. P. Singh},
journal= {arXiv preprint arXiv:2111.12388},
year = {2022}
}
Comments
5 pages and 6 figures