光学
光学(聚焦)
物理
高斯分布
弹道
横截面
波包
职位(财务)
超光速运动
网络数据包
振荡(细胞信号)
计算机科学
量子力学
遗传学
结构工程
生物
工程类
经济
计算机网络
财务
作者
YingJun Luo,Zehong Liang,Zhenwu Mo,jingyi shi,J. Huang,Yongzheng Yang,Xiao Jun Lin,Z. Ruan,C.H. Wang,Min Ouyang,Dongmei Deng
出处
期刊:Optics Letters
[The Optical Society]
日期:2024-01-03
卷期号:49 (2): 290-290
摘要
The group velocity (GV) modulation of space–time wave packets (STWPs) along the transverse and longitudinal directions in free space is constrained by various factors. To surmount this limitation, a technique called “flying focus” has been developed, which enables the generation of laser pulses with dynamic focal points that can propagate at arbitrary velocities independent of GV. In this Letter, we propose a (3+1)-dimensional Pearcey–Gauss wave packet based on the “flying focus” technique, which exhibits superluminal propagation, transverse focus oscillation, and longitudinal periodic autofocusing. By selecting appropriate parameters, we can flexibly manipulate the position, the size, and the number of focal points- or make the wave packet follow a desired trajectory. This work may pave the way for the advancement of space–time structured light fields.
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