Pattern formation in a nonlinear optical system: the effects of nonlocality
Anno: 1999
Autori: Ramazza PL., Boccaletti S., Giaquinta A., Pampaloni E., Soria S., Arecchi F.T.
Affiliazione autori: Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze, Italy;
Department of Physics, University of Firenze, 50125 Firenze, Italy;
Department E.C.M., Universitat de Barcelona, Spain;
Institut Non Lineaire de Nice-Sophia Antipolis, France
Abstract: We discuss the role of nonlocal interactions in determining the mechanisms of pattern formation and selection in a nonlinear system formed by a Liquid Crystal Light Valve inserted in an optical feedback loop. We present experimental results, and compare them with the predictions of a linear stability analysis of the equations governing the system.
Nonlocality is introduced in the system via a lateral transport of a length at of the feedback signal. The value of the transport length plays a key role in determining the symmetry of the selected pattern in systems with both focusing and defocusing nonlinearity. In the defocusing case, the spatial wavelength of the pattern is also affected by the value of the transport length. (C)1999 Elsevier Science Ltd.
Giornale/Rivista: CHAOS SOLITONS & FRACTALS
Volume: 10 (4-5) Da Pagina: 693 A: 700
Parole chiavi: FEEDBACK MIRROR; LIQUID-CRYSTAL; INSTABILITIESCitazioni: 1dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-04-28Riferimenti tratti da Isi Web of Knowledge: (solo abbonati) Link per visualizzare la scheda su IsiWeb: Clicca quiLink per visualizzare la citazioni su IsiWeb: Clicca qui