Quantum squeezing induced nonreciprocal phonon laser  

作　　者：Tian-Xiang Lu Yan Wang Keyu Xia Xing Xiao Le-Man Kuang Hui Jing 

机构地区：[1]College of Physics and Electronic Information,Gannan Normal University,Ganzhou 341000,China [2]Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education,Department of Physics and Synergetic Innovation Center for Quantum Effects and Applications,Hunan Normal University,Changsha 410081,China [3]Academy for Quantum Science and Technology,Zhengzhou University of Light Industry,Zhengzhou 450002,China [4]College of Engineering and Applied Sciences,National Laboratory of Solid State Microstructures,and Collaborative Innovation Center of Advanced Microstructures,Nanjing University,Nanjing 210023,China

出　　处：《Science China(Physics,Mechanics & Astronomy)》2024年第6期20-30,共11页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Natural Science Foundation of China(Grant No.11935006);the Hunan Provincial Major Sci-Tech Program(Grant No.2023ZJ1010);the Science and Technology Innovation Program of Hunan Province(Grant No.2020RC4047);supported by the National Natural Science Foundation of China(Grant Nos.12247105,12175060,and 11935006);XJ-Lab Key Project(Grant No.23XJ02001).Keyu Xia was supported by the National Key R&D Program of China(Grant No.2019YFA0308704);the National Natural Science Foundation of China(Grant No.92365107);the Program for Innovative Talents and Teams in Jiangsu(Grant No.JSSCTD202138);supported by the National Natural Science Foundation of China(Grant No.12205054);the Jiangxi Provincial Education Office Natural Science Fund Project(Grant No.GJJ211437);the Ph.D.Research Foundation(Grant No.BSJJ202122);supported by the National Natural Science Foundation of China(Grant No.12265004);supported by the National Natural Science Foundation of China(Grant No.12205256);the Henan Provincial Science and Technology Research Project(GrantNo.232102221001)。

摘　　要：Phonon lasers or coherent amplifications of mechanical oscillations are powerful tools for fundamental studies on coherent acoustics and hold potential for diverse applications,ranging from ultrasensitive force sensing to phononic information processing.Here,we propose the use of an optomechanical resonator coupled to a nonlinear optical resonator for directional phonon lasing.We find that by pumping the nonlinear optical resonator,directional optical squeezing can occur along the pump direction.As a result,we can achieve the directional mechanical gain using directional optical squeezing,thereby leading to nonreciprocal phonon lasing with a well-tunable directional power threshold.Our work proposes a feasible way to build nonreciprocal phonon lasers with various nonlinear optical media,which are important for a wide range of applications,such as directional acoustic amplifiers,invisible sound sensing or imaging,and one-way phononic networks.

关 键 词：nonreciprocal phonon laser directional quantum squeezing OPTOMECHANICS 

分 类 号：TN248[电子电信—物理电子学]