Enhanced light transmission through a metallic nanolens consisting of multiple nanorings

Youngjin Oh; Jong-ryul Choi; Kyujung Kim; Donghyun Kim

doi:10.1117/12.874489

8 February 2011 Enhanced light transmission through a metallic nanolens consisting of multiple nanorings

Youngjin Oh, Jong-ryul Choi, Kyujung Kim, Donghyun Kim

Proceedings Volume 7941, Integrated Optics: Devices, Materials, and Technologies XV; 794119 (2011) https://doi.org/10.1117/12.874489
Event: SPIE OPTO, 2011, San Francisco, California, United States

Abstract

In this study, we investigated light transmission based on a metallic nano-lens for imaging applications. The nano-lens consists of multiple nano-rings formed in a thin metal film. Four types of nano-lens structures in a 50-nm thick gold film were simulated using rigorous coupled-wave analysis. Each nano-lens is designed to operate as a lens element that focuses transmitted light. The results show the focal power increasing with the ring number and the enhancement of achievable numerical aperture compared to that of conventional lenses.

Citation Download Citation

Youngjin Oh, Jong-ryul Choi, Kyujung Kim, and Donghyun Kim "Enhanced light transmission through a metallic nanolens consisting of multiple nanorings", Proc. SPIE 7941, Integrated Optics: Devices, Materials, and Technologies XV, 794119 (8 February 2011); https://doi.org/10.1117/12.874489

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