Complex skin modes in non-Hermitian coupled laser arrays

作     者：Yuzhou G.N.Liu Yunxuan Wei Omid Hemmatyar Georgios G.Pyrialakos Pawel S.Jung Demetrios N.Christodoulides Mercedeh Khajavikhan Yuzhou G.N.Liu;Yunxuan Wei;Omid Hemmatyar;Georgios G.Pyrialakos;Pawel S.Jung;Demetrios N.Christodoulides;Mercedeh Khajavikhan

作者机构：Ming Hsieh Department of Electrical and Computer EngineeringUniversity of Southern CaliforniaLos AngelesCA 90089USA CREOLThe College of Optics&PhotonicsUniversity of Central FloridaOrlandoFL 32816-2700USA Faculty of PhysicsWarsaw University of TechnologyKoszykowa 7500-662 WarsawPoland Department of Physics&AstronomyDornsife College of LettersArts&SciencesUniversity of Southern CaliforniaLos AngelesCA 90089USA 

出 版 物：《Light(Science & Applications)》 (光（科学与应用)（英文版）)

年 卷 期：2022年第11卷第12期

页      面：3002-3007页

核心收录：

学科分类：080901[工学-物理电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080401[工学-精密仪器及机械] 0804[工学-仪器科学与技术] 0803[工学-光学工程] 

基　　金：the financial support from Air Force Office of Scientific Research(AFOSR)Multidisciplinary University Research Initiative(MURI)Award on Novel light-matter interactions in topologically non-trivial Weyl semimetal structures and systems(Award No.FA9550-20-1-0322) AFOSR MURI Award on Programmable systems with non-Hermitian quantum dynamics(Award No.FA9550-21-1-0202) Office of Naval Research(ONR)(N00014-19-1-2052,N00014-20-1-2522) ONR MURI award on the classical entanglement of light(Award No.N00014-20-1-2789),DARPA(D18AP00058) National Science Foundation(CBET 1805200) W.M.Keck Foundation,US-Israel Binational Science Foundation(BSF:2016381) MPS Simons collaboration(Simons grant 733682) US Air Force Research Laboratory(FA86511820019) the Qatar National Research Fund(grant NPRP13S0121-200126) the support from Bodossaki Foundation 

主　　题：Hermitian locking Complex 

摘      要：From biological ecosystems to spin glasses,connectivity plays a crucial role in determining the function,dynamics,and resiliency of a *** the realm of non-Hermitian physics,the possibility of complex and asymmetric exchange interactions(|κ_(ij)|≠|κ_(ji)|)between a network of oscillators has been theoretically shown to lead to novel behaviors like delocalization,skin effect,and bulk-boundary *** archetypical lattice exhibiting the aforementioned properties is that proposed by Hatano and Nelson in a series of papers in late *** the ramifications of these theoretical works in optics have been recently pursued in synthetic dimensions,the Hatano-Nelson model has yet to be realized in real *** makes the implementation of these lattices challenging is the difficulty in establishing the required asymmetric exchange interactions in optical *** this work,by using active optical oscillators featuring non-Hermiticity and nonlinearity,we introduce an anisotropic exchange between the resonant elements in a lattice,an aspect that enables us to observe the non-Hermitian skin effect,phase locking,and near-field beam steering in a Hatano-Nelson laser *** work opens up new regimes of phase-locking in lasers while shedding light on the fundamental physics of non-Hermitian systems.