Abstract:
In 2D optical patterns obtained in a Liquid Crystal Light Valve with optical feedback, we show a new kind of geometrical frustration which comes from the imposed form of the boundaries. The circular section of the incoming laser beam presents a symmetry which belongs to the O(2) group, whereas the optical feedback selects patterns with a symmetry restrained to a dihedral subgroup of O(2). By imposing boundaries which respect the symmetry of the dihedral group, we lift the frustration and obtain perfectly ordered patterns.
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Received 19 January 2001 and Received in final form 2 June 2001
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Residori, S., Olivi-Tran, N. Constrained order in frustrated 2D optical patterns. Eur. Phys. J. D 17, 255–259 (2001). https://doi.org/10.1007/s100530170029
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DOI: https://doi.org/10.1007/s100530170029