Review on fractional vortex beam

Nanophotonics

Zhang Hao¹  Zhao Chengliang¹  Lu Xingyuan¹  Cai Yangjian¹  Wang Zhuoyi¹  Zeng Jun² 

[1] School of Physical Science and Technology, Soochow University, Suzhou215006, China;School of Physics and Electronics, Shandong Provincial Engineering and Technical Center of Light Manipulations & Shandong Provincial Key Laboratory of Optics and Photonic Devices, Shandong Normal University, Jinan250014, China;

关键词: fractional vortex beam;    orbital angular momentum;    phase step;    singular optics;    structured light;    topological charge jump;   

DOI  :  10.1515/nanoph-2021-0616

来源: DOAJ

【 摘 要 】

As an indispensable complement to an integer vortex beam, the fractional vortex beam has unique physical properties such as radially notched intensity distribution, complex phase structure consisting of alternating charge vortex chains, and more sophisticated orbital angular momentum modulation dimension. In recent years, we have noticed that the fractional vortex beam was widely used for complex micro-particle manipulation in optical tweezers, improving communication capacity, controllable edge enhancement of image and quantum entanglement. Moreover, this has stimulated extensive research interest, including the deep digging of the phenomenon and physics based on different advanced beam sources and has led to a new research boom in micro/nano-optical devices. Here, we review the recent advances leading to theoretical models, propagation, generation, measurement, and applications of fractional vortex beams and consider the possible directions and challenges in the future.

【 授权许可】

Unknown