SUN Hai-bin,ZHANG Xin-yu,SUN Ping.Generation of regular optical vortex arrays using double gratings[J].Optoelectronics Letters,2021,17(5):313-316 Generation of regular optical vortex arrays using double gratings Author Name Affiliation SUN Hai-bin  College of Physics and Electronic Engineering, Taishan University, Tai’an 271000, China  ZHANG Xin-yu  School of Physics and Electronics, Shandong Normal University, Jinan 250014, China  SUN Ping  School of Physics and Electronics, Shandong Normal University, Jinan 250014, China  Abstract:       In order to generate high quality regular optical vortex array (OVA), we present an experimental method for generating OVA using phase only liquid crystal spatial light modulator (LC-SLM) assisted two gratings. In the scheme, holograms of two grating are displayed on the screen of two LC-SLMs respectively; the diffraction optical fields are captured by a CCD camera. The simulated and experimental results show that the regular OVA can be generated by using double diffraction gratings. The generated OVAs have a constant topological charge of ±1. The method can provide a useful pathway to produce regular OVA for some applications in optical communication, particle trapping and optical metrology. Hits: 539 Download times: 0 View Full Text    Download reader