Reflection-type photonic crystal vortex plates

Alignment-free vortex generation

Generates vortex beams efficiently without precise alignment, with simple fabrication for flexible use.

Li, Tongyu · Wang, Jiajun · Zhang, Wenjie · Xinhao, Wang · Liu, Wenzhe · Shi, Lei · Zi, Jian

National Science Review 2023

Specifications

最大谐振转换效率高
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