Self-accelerating beams have the unusual ability to remain diffraction-free while undergo the transverse shift during the free-space propagation. We theoretically identify that the transverse optical field distribution of 2D self-accelerating beam is determined by the selection of the transverse Cartesian coordinates, when the caustic method is utilized for its trajectory design. Based on the coordinate-rotation method, we experimentally demonstrate a scheme to flexibly manipulate the rotation of transverse optical field for 2D self-accelerating beams under the condition of a designated trajectory. With this scheme, the transverse optical field can be rotated within a range of 90 degrees, especially when the trajectory of 2D self-accelerating beams needs to be maintained for free-space photonic interconnection.
Flexible rotation of transverse optical field for 2D self-accelerating beams with a designated trajectory
First published at:Mar 25, 2021
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National Key R&D Program of China (Grant No. 2018YFB1801001), the National Natural Science Foundation of China (Grant No. 61875061), and the Program for Guangdong Introducing Innovative and Entrepreneurial Teams.
Get Citation: Zhu L, Zhao XS, Liu C, Fu SN, Wang YC et al. Flexible rotation of transverse optical field for 2D self-accelerating beams with a designated trajectory. Opto-Electron Adv 4, 200021 (2021).
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