Experimental evidence of “vibrational resonance” in an optical system
Anno: 2003
Autori: Chizhevsky V.N., Smeu E., Giacomelli G.
Affiliazione autori: Istituto Nazionale di Ottica Applicata, Largo E. Fermi 6, 50125 Firenze, Italy;
B.I. Stepanov Institute of Physics, NASB, 220072 Minsk, Belarus;
University Politehnica of Bucharest, Physics Department, 77206 Bucharest, Romania;
Istituto Nazionale di Fisica della Materia, Unita di Firenze, Firenze, Italy
Abstract: The experimental evidence and characterization of “vibrational resonance” in a bistable vertical cavity laser are reported. The system is driven by two periodic forcings, with frequencies differing by several orders and studied in the case of both symmetrical and asymmetrical quasipotentials. The phenomenon shows up in the dynamics of the polarized laser emission as a resonance in the low-frequency response and signal-to-noise ratio, depending on the amplitude of an applied high-frequency modulation. The possibility to use the phenomenon for low-level detection is experimentally demonstrated.
Giornale/Rivista: PHYSICAL REVIEW LETTERS
Volume: 91 (22) Da Pagina: 220602-1 A: 220602-4
Parole chiavi: STOCHASTIC RESONANCEDOI: 10.1103/PhysRevLett.91.220602Citazioni: 123dati da “WEB OF SCIENCE” (of Thomson Reuters) aggiornati al: 2024-05-12Riferimenti 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