Hexagonal self-structuring due to optomechanical nonlinearities in cold atomic gases

Ackemann, T. and Labeyrie, G. and Tesio, E. and Gomes, P. and Oppo, G.L. and Firth, W.J. and Robb, G.R.M. and Arnold, A and Kaïser, R. (2013) Hexagonal self-structuring due to optomechanical nonlinearities in cold atomic gases. In: Nonlinear Optics. Optical Society of America. ISBN 9781557529770

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Abstract

We demonstrate an optomechanical instability in a sample of cold atoms driven by a single laser beam in presence of a feedback mirror. Hexagonal light filaments propagate in atom-depleted tubes forming a honeycomb lattice.