Study of spiral-ring plasmonic structures for optical manipulation

Bo Yan; Hongfeng Ma; Xian Liu; Kesong Zhong; Chenghua Sui; Juanzhuan Wang; Yi Shi

doi:10.1117/12.2069832

21 August 2014 Study of spiral-ring plasmonic structures for optical manipulation

Bo Yan, Hongfeng Ma, Xian Liu, Kesong Zhong, Chenghua Sui, Juanzhuan Wang, Yi Shi

Proceedings Volume 9285, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Smart Structures and Materials for Manufacturing and Testing; 92850I (2014) https://doi.org/10.1117/12.2069832
Event: 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies (AOMATT 2014), 2014, Harbin, China

Abstract

Chiral plasmonic structures provide an effective way to couple optical spin with orbital angular momentum, which is suitable to perform manipulation of light beam. This work presents simulation results for a type of spiral-ring plasmonic structures that provide circular polarization selectively in the visible spectrum. The structure consists of discrete spiral gratings that are truncated by rings. With circular polarized lights transmitting the subwavelength structure, surface plasmon polaritons and localized surface plasmons are excited together. Thus, multi-rings spiral plasmonic structures are introduced to obtain high extinction ratio circular dichroism. Moreover, the wavefront phase singularity is also observed in the simulation.

Citation Download Citation

Bo Yan, Hongfeng Ma, Xian Liu, Kesong Zhong, Chenghua Sui, Juanzhuan Wang, and Yi Shi "Study of spiral-ring plasmonic structures for optical manipulation", Proc. SPIE 9285, 7th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Smart Structures and Materials for Manufacturing and Testing, 92850I (21 August 2014); https://doi.org/10.1117/12.2069832

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