Abstract
In a nonlinear optical single feedback system formation of symmetry broken patterns is observed. We make use of a liquid crystal light valve to experimentally simulate a self-defocusing Kerr-type nonlinearity. Beyond a certain threshold of the power of the input laser beam, bright spots appear and arrange themselves into a hexagonal formation. By further increasing input power, this ideal order is disturbed and finally breaks down. The observations are compared with a theory, derived for a similar setup. Measures for the degree of short- and long-range order are introduced, leading to the identification of two distinct states of order.
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Schedule a callMore From: Chaos, Solitons and Fractals: the interdisciplinary journal of Nonlinear Science, and Nonequilibrium and Complex Phenomena
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