AUTHOR=Zhang Hao , Lu Xingyuan , Wang Zhuoyi , Konijnenberg A. P. , Wang Haiyun , Zhao Chengliang , Cai Yangjian TITLE=Generation and Propagation of Partially Coherent Power-Exponent-Phase Vortex Beam JOURNAL=Frontiers in Physics VOLUME=9 YEAR=2021 URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2021.781688 DOI=10.3389/fphy.2021.781688 ISSN=2296-424X ABSTRACT=
We report on a partially coherent power-exponent-phase vortex beam (PC-PEPV), whose spatial coherence is controllable and the initial phase exhibits a periodic power exponential change. The PC-PEPV beam was generated experimentally with various spatial coherence widths, and its propagation properties were studied both numerically and experimentally. By modulating the topological charge (TC) and power order of the PC-PEPV beam, the structure of the vortex beam can be adjusted from circular to elliptic, triangular, quadrangle, and pentagon. When the power order is odd, the PC-PEPV beam with a negative TC can be generated, and the profiles of the PC-PEPV beam can be precisely controlled