物理学进展 ›› 2020, Vol. 40 ›› Issue (5): 163-174.

所属专题: 2023年, 第43卷

• • 上一篇    

非线性自加速光场及其应用

贾鹏博, 裴雨苗, 张平, 李致力, 胡毅, 许京军   

  1. 弱光非线性光子学教育部重点实验室,南开大学物理学院,天津300071;南开大学泰达应用物理研究院,天津300457

  • 出版日期:2020-11-25 发布日期:2020-11-26

Nonlinear Self-Accelerating Optical Fields and Their Applications

Jia Peng-Bo, Pei Yu-Miao, Zhang Ping, Li Zhi-Li, Hu Yi, Xu Jing-Jun   

  1. The MOE Key Laboratory of Weak-Light Nonlinear Photonics, TEDA Applied Physics Institute and School of Physics, Nankai University, Tianjin 300457, China

  • Online:2020-11-25 Published:2020-11-26

摘要:

近年来,艾里光束/脉冲等光场因其独特的自加速传输特性以及在诸多应用中表现出的优势引起了人们极大的研究兴趣。但在非线性环境中,这类光场却面临失去其特殊结构以及加速特性的困境。为了解决这一问题,非线性自加速光场应运而生,使得非线性过程具有加速的特质。本文基于作者近期的工作回顾了非线性自加速光场的研究进展。首先讨论了它们的物理图像以及它们与艾里光场的联系,其次详细介绍了自加速特性在非线性调控、非线性响应函数的可视化以及光控光中的独特应用优势,最后介绍了一种新式的光场自加速行为|| 可类比于经典力学中正负质量物质的相互作用过程。这些非线性自加速光场可让非线性动力学过程在弯曲时/空发生,能引起平坦空间无法实现的新现象与新应用。

关键词:

光场调控, 非线性光动力学, 艾里光场, 自加速

Abstract:

Optical Airy beams or pulses, famous for a self-accelerating intense peak, have recently attracted a great deal of attention triggered by their intriguing properties and unique advantages in a variety of applications. Under the action of nonlinearities, such wave packets tend to lose their peculiar structures and the associated accelerating dynamics are accordingly degraded. To circumvent this inconvenience, nonlinear self-accelerating beams/pulses were conceived, leading to more possibilities to shape a nonlinear process into an accelerating configuration. Here, we present a review on these nonlinear self-accelerating wave packets following our recent works. Their physical picture and connection with the Airy wave packets are discussed. Then we focus on their accelerating property that shows exotic features in controlling nonlinear dynamics, visualizing optical nonlinear responses and guiding other light. In the end, a new kind of self-accelerating beams is introduced, exhibiting a mechanism in analogy to the interaction between matters of opposite mass signs. These nonlinear wave packets have brought the nonlinear dynamics into a region of a curved space or space-time, and more fantastic phenomena and applications which are otherwise hard to reach in flat space are expected.

Key words: Optical field manipulation, Optical nonlinear dynamics, Optical Airy field, Selfacceleration

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