Winking hexagons

A new kind of nonstationary hexagonal dissipative structure is found in simulations of an optical-pattern–forming system. Since the brightness of the individual constituents creating the hexagonal lattice oscillates with time, these structures may be named winking hexagons. They are formed by the re...

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Bibliographic Details
Published in:Europhysics letters 1997-06, Vol.38 (8), p.583-588
Main Authors: Logvin, Yu. A, Ackemann, T, Lange, W
Format: Article
Language:English
Subjects:
42.65.Sf
47.54.+r
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Summary:A new kind of nonstationary hexagonal dissipative structure is found in simulations of an optical-pattern–forming system. Since the brightness of the individual constituents creating the hexagonal lattice oscillates with time, these structures may be named winking hexagons. They are formed by the resonant interaction of two hexagonal triads of spatial modes. One of the triads is excited due to a Hopf bifurcation, the other one due to a static instability.
ISSN:0295-5075
1286-4854
DOI:10.1209/epl/i1997-00287-1