Archive > Volume 17 Issue 5 > 2021,17(5):313-316. DOI:https://doi.org/10.1007/s11801-021-0047-0 CSTR:[cstr] Prev Next
Generation of regular optical vortex arrays using double gratings
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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.
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