Title :
Speckle instability in strongly scattering Kerr random media
Author :
Pacilli, M. ; Sebbah, P. ; Vanneste, C.
Author_Institution :
Lab. de Phys. de la Matiere Condensge-CNRS, Univ. de Nice-Sophia Antipolis, Nice, France
Abstract :
Summary form only given. Using the wave automaton, a numerical tool we developed to describe the full dynamics of (scalar) waves in complex media, we simulate wave propagation in two dimensional quenched disordered media in the presence of a Kerr nonlinearity. Under suitable condition of disorder and nonlinear perturbation, we observe a speckle instability even in absence of scatterer motion, which results from the positive feedback provided by the scattering medium.
Keywords :
light interference; light propagation; optical Kerr effect; optical chaos; optical feedback; speckle; stability; Kerr nonlinearity; complex media; full dynamics; instability; nonlinear perturbation; numerical tool; positive feedback; scalar waves; scattering medium; two dimensional quenched disordered media; wave automaton; Feedback; Frequency; Laser modes; Light scattering; Optical scattering; Plasma density; Plasma temperature; Random media; Resonance light scattering; Speckle;
Conference_Titel :
Lasers and Electro-Optics, 2002. CLEO '02. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Long Beach, CA, USA
Print_ISBN :
1-55752-706-7
DOI :
10.1109/CLEO.2002.1033526
