Ring focus reflector design for topological charge multiplexing based on a perfect vortex beam

Autor: Jinxin Deng, Huajun Yang, Ping Jiang, Yan Qin, Weinan Caiyang, Jing Yang, Junyi He, Lizhong Hu
Rok vydání: 2022
Předmět:
Zdroj: Applied Optics. 61:7532
ISSN: 2155-3165
1559-128X
DOI: 10.1364/ao.467553
Popis: A ring focus reflector is proposed for transmitting a perfect vortex (PV) beam, and the transmission characteristics of the PV beam with different topological charges in free space after passing through the reflector are studied. The reflector parameters can be determined by fitting the structural formula, and PV beams of different orders transmit with small spot sizes at the same time. The transmission trajectory calculated by the diffraction formula is consistent with the ray tracing results. The research results show that the reflector can achieve a high level of transmission efficiency of beams with different topological charges, which is conducive to the multiplexing of PV beams.
Databáze: OpenAIRE