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arXiv · 1207.3571

Shape-preserving diffusion of a high-order mode

Dimity Yankelev·Ofer Firstenberg·Moshe Shuker·Nir Davidson
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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.

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Dimity Yankelev, Ofer Firstenberg, Moshe Shuker, Nir Davidson. 2012-12-07. Shape-preserving diffusion of a high-order mode. https://doi.org/10.1364/ol.38.001203

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