摘要
对两艾里-高斯光束在一维非局域非线性缺陷晶格中的相互作用进行数值研究,并分别讨论了非线性非局域性、晶格性质、光束性质、光束入射角以及两光束相位差对传输实验结果的影响。实验发现两艾里-高斯光束在不同条件下相互作用会形成晶格孤子、准呼吸子,甚至还出现了晶格孤子对。其中,多数情况下观察到了准呼吸子,且准呼吸子的空间大小和周期受到了非局域非线性、晶格缺陷以及光速自加速的影响。当两艾里-高斯光束之间存在相位差入射时,它们在晶格中相互作用,形成两个孤子对,一对孤子垂直传输,而另一对孤子斜向传输。
Interaction of two Airy-Gaussian beams in a one-dimensional nonlocal nonlinear defected lattice is numerically studied,and the effects of the nonlinear non-local properties,lattice properties,beam properties,beam incidence angle,and phase difference between the two beams on the experimental results are discussed.It is found that the interaction of two Airy-Gaussian beams under different conditions forms lattice solitons,quasi-breaths,and even lattice solitons.In most cases,the quasi-breaths are observed,and their spatial size and period are affected by nonlocal nonlinearity,lattice defects,and light self-acceleration.When phase difference exists between the two incident Airy-Gaussian beams,the interaction in the lattice will form a soliton pair,with one soliton transmitting vertically and the other soliton transmitting diagonally.
作者
左茂武
石智伟
李华刚
Zuo Maowu;Shi Zhiwei;Li Huagang(School of Electromechanical Engineering,Guangdong University of Technology,Guangzhou,Guangdong 510006,China;School of Optoelectronic Engineering,Guangdong Polytechnic Normal University,Guangzhou,Guangdong 510665,China)
出处
《激光与光电子学进展》
CSCD
北大核心
2020年第5期202-209,共8页
Laser & Optoelectronics Progress
基金
国家自然科学基金(11374067)。
