Enhanced light transmission through a metallic nano-lens consisting of multiple nano-rings

Youngjin Oh, Jong Ryul Choi, Kyujing Kim, Donghyun Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


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.

Original languageEnglish
Title of host publicationIntegrated Optics
Subtitle of host publicationDevices, Materials, and Technologies XV
Publication statusPublished - 2011
EventIntegrated Optics: Devices, Materials, and Technologies XV - San Francisco, CA, United States
Duration: 2011 Jan 242011 Jan 26

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


OtherIntegrated Optics: Devices, Materials, and Technologies XV
Country/TerritoryUnited States
CitySan Francisco, CA

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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