Self-Organization of Light in Optical Media with Competing Nonlinearities

作     者：F. Maucher T. Pohl S. Skupin W. Krolikowski 

作者机构：Joint Quantum Centre (JQC) Durham-Newcastle Department of Physics Durham University Durham DH1 3LE United Kingdom Department of Mathematical Sciences Durham University Durham DH1 3LE United Kingdom Max Planck Institute for the Physics of Complex Systems 01187 Dresden Germany Univ. Bordeaux—CNRS—CEA Centre Lasers Intenses et Applications UMR 5107 33405 Talence France Laser Physics Centre Research School of Physics and Engineering Australian National University Canberra ACT 0200 Australia Science Program Texas A&M University at Qatar Doha Qatar 

出 版 物：《Physical Review Letters》 (Phys Rev Lett)

年 卷 期：2016年第116卷第16期

页      面：163902-163902页

核心收录：

学科分类：07[理学] 0702[理学-物理学] 

基　　金：Qatar National Research Fund  QNRF  (NPRP8-246-1-060) 

主　　题：Nonlinear optics Optical solitons 

摘      要：We study the propagation of light beams through optical media with competing nonlocal nonlinearities. We demonstrate that the nonlocality of competing focusing and defocusing nonlinearities gives rise to self-organization and stationary states with stable hexagonal intensity patterns, akin to transverse crystals of light filaments. Signatures of this long-range ordering are shown to be observable in the propagation of light in optical waveguides and even in free space. We consider a specific form of the nonlinear response that arises in atomic vapor upon proper light coupling. Yet, the general phenomenon of self-organization is a generic consequence of competing nonlocal nonlinearities, and may, hence, also be observed in other settings.