par Santagiustina, Marco;Colet, Pere;Miguel, Maxi San;Walgraef, Daniel 
Référence Physical review letters, 79, 19, page (3633-3636)
Publication Publié, 1997-11
Référence Physical review letters, 79, 19, page (3633-3636)
Publication Publié, 1997-11
Article révisé par les pairs
| Résumé : | Evidence of noise-sustained patterns in nonlinear optical systems is given. They are found in passive optical cavities, filled by Kerr type nonlinear media, when the angle of incidence of the pump beam is not zero, in a regime of convective instability. These patterns arise as a macroscopic manifestation of dynamically amplified noise, with amplification factors of up to 105. We characterize the difference between noise-sustained and deterministic patterns in terms of statistical properties of the field spectral intensity. |
