Shape-preserving diffusion of a high-order mode
Optics
2013-05-27 v2
Abstract
The close relation between the processes of paraxial diffraction and coherent diffusion is reflected in the similarity between their shape-preserving solutions, notably the Gaussian modes. Differences between these solutions enter only for high-order modes. Here we experimentally study the behavior of shape-preserving high-order modes of coherent diffusion, known as 'elegant' modes, and contrast them with the non-shape-preserving evolution of the corresponding 'standard' modes of optical diffraction. Diffusion of the light field is obtained by mapping it onto the atomic coherence field of a diffusing vapor in a storage-of-light setup. The growth of the elegant mode fits well the theoretical expectations.
Cite
@article{arxiv.1207.3571,
title = {Shape-preserving diffusion of a high-order mode},
author = {Dimity Yankelev and Ofer Firstenberg and Moshe Shuker and Nir Davidson},
journal= {arXiv preprint arXiv:1207.3571},
year = {2013}
}