19 February 2014 Unidirectional optical coupling for plasmonic waveguide based on metallic-dielectric high-contrast gratings
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Proceedings Volume 8995, High Contrast Metastructures III; 899516 (2014) https://doi.org/10.1117/12.2044880
Event: SPIE OPTO, 2014, San Francisco, California, United States
Abstract
Based on the metallic-dielectric high contrast gratings, we proposed two new different schemes to achieve the unidirectional coupling of incident free-space light into the plasmonic waveguides. Using the cascaded metal-air subgratings (structure 1) or metallic-dielectric subwavelength periodic gratings (structure 2), the ultra-broadband and wideangular SPPs excitation could be both achieved. The operation principle and performance of the structures are analyzed and discussed, respectively.
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Fan Lu, Kun Li, Zhonghua Wang, Zhijun He, Dalin Liu, Anshi Xu, "Unidirectional optical coupling for plasmonic waveguide based on metallic-dielectric high-contrast gratings", Proc. SPIE 8995, High Contrast Metastructures III, 899516 (19 February 2014); doi: 10.1117/12.2044880; https://doi.org/10.1117/12.2044880
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