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5 October 2023 Effective diffraction in broad angle of incidence via gap surface plasmon
Kyutae Lee, Sungjae Jin, Bumjin Kim, In-Sub Han, Kang-Yeol Park, Yanghyun Joo
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Proceedings Volume PC12648, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XXI; PC126481E (2023) https://doi.org/10.1117/12.2675777
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States
Abstract
In this work, we report a novel method to mitigate the dependency of incident angle on diffraction efficiency by depositing a metal film on the grating structure. Moreover, the metallic structures strongly enhance the interaction between the incoming light and the nanostructures, leading to an improvement in diffraction efficiency. The results have shown the potential to overcome the bottleneck of augmented reality glasses, which require a large field of view with high efficiency.
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Kyutae Lee, Sungjae Jin, Bumjin Kim, In-Sub Han, Kang-Yeol Park, and Yanghyun Joo "Effective diffraction in broad angle of incidence via gap surface plasmon", Proc. SPIE PC12648, Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XXI, PC126481E (5 October 2023); https://doi.org/10.1117/12.2675777
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KEYWORDS
Diffraction
Diffraction gratings
Metals
Optical gratings
Surface plasmons
Augmented reality
Diffractive optical elements
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