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; VorticesDOI: 10.1103/PhysRevA.56.2237Citazioni: 8dati 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