Pattern dynamics in a large Fresnel number laser close to threshold

Anno: 1997

Autori: Labate A., Ciofini M., Meucci R., Boccaletti S., Arecchi F.T.

Affiliazione autori: Istituto Nazionale di Ottica, Largo E. Fermi 6, 50125 Firenze, Italy

Abstract: A high Fresnel number laser close to threshold can be set at a detuning value where it displays only the first transverse pattern with zero intensity in its center. However, the availability of a large phase space gives rise to a new type of dynamics. Precisely, for this highly symmetric situation, the intensity pattern undergoes a transition between stable and oscillating superpositions of traveling and standing waves. Such a transition corresponds to the so-called Takens-Bogdanov bifurcation. We report experimental evidence of such a behavior.

Giornale/Rivista: PHYSICAL REVIEW A

Volume: 56 (3)      Da Pagina: 2237  A: 2241

Parole chiavi: Benard-Marangoni convection; Spatiotemporal dynamics; Co2-laser; Symmetry; Vortices
DOI: 10.1103/PhysRevA.56.2237

Citazioni: 8
dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-04-28
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