Result: Inherent stochastic linearization of random laser modes

Title:
Inherent stochastic linearization of random laser modes
Authors:
ANDREASEN, Jonathan, HUI CAO
Source:
Nonlinearity (Bristol. Print). 25(3):851-868
Publisher Information:
Bristol: Institute of Physics, 2012.
Publication Year:
2012
Physical Description:
print, 55 ref
Original Material:
INIST-CNRS
Subject Terms:
Mathematics, Mathématiques, Theoretical physics, Physique théorique, Sciences exactes et technologie, Exact sciences and technology, Sciences et techniques communes, Sciences and techniques of general use, Mathematiques, Mathematics, Analyse mathématique, Mathematical analysis, Approximations et développements, Approximations and expansions, Topologie. Variétés et complexes cellulaires. Analyse globale et analyse sur variétés, Topology. Manifolds and cell complexes. Global analysis and analysis on manifolds, Analyse globale, analyse sur des variétés, Global analysis, analysis on manifolds, Probabilités et statistiques, Probability and statistics, Théorie des probabilités et processus stochastiques, Probability theory and stochastic processes, Analyse stochastique, Stochastic analysis, Physique, Physics, Generalites, General, Méthodes mathématiques en physique, Mathematical methods in physics, Divers, Other topics in mathematical methods in physics, Analyse non linéaire, Nonlinear analysis, análisis no lineal, Bruit, Noise, Ruido, Chevauchement, Overlap, Imbricación, Equation Maxwell, Maxwell equation, Ecuación Maxwell, Equation stochastique, Stochastic equation, Ecuación estocástica, Gain, Ganancia, Laser, Láser, Linéarisation, Linearization, Linearización, Physique mathématique, Mathematical physics, Física matemática, Phénomène non linéaire, Non linear phenomenon, Fenómeno no lineal, Saturation, Saturación, Seuil, Threshold, Umbral, Simulation, Simulación, Trou, Hole, Hoyo, 37N20, 41A40, 60H25, Equation aléatoire
Document Type:
Academic journal Article
File Description:
text
Language:
English
Author Affiliations:
Department of Applied Physics, Yale University, New Haven, CT 06520, United States
Laboratoire de Physique de la Matiere Condensée, CNRS UMR 7336, Université de Nice-Sophia Antipolis, Parc Valrose, 06108, Nice, France
Department of Physics, Yale University, New Haven, CT 06520, United States
ISSN:
0951-7715
Access URL:
http://pascal-francis.inist.fr/vibad/index.php?action=search&terms=25605087
Rights:
Copyright 2015 INIST-CNRS
CC BY 4.0
Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS
Notes:
Mathematics

Theoretical physics
Accession Number:
edscal.25605087
Database:
PASCAL Archive

Further Information

Weakly scattering random lasers exhibit lasing modes that spatially overlap and can interact strongly via gain saturation. Consequently, lasing in high-threshold modes may be suppressed by strong low-threshold lasing modes. We numerically examine the effect of inherent spontaneous emission noise on this strong nonlinear phenomenon. With a method to incorporate this noise into the Maxwell-Bloch equations for simulations of random lasers, emission below the lasing threshold is observed and the noise restrains dramatic nonlinear behaviour above threshold. The result is a linearization of random laser modes, made possible when noise overcomes spatial hole burning. Results suggest that control over the noise properties of the gain medium may facilitate or inhibit certain modes to lase in the multimode regime.