Three-dimensional light manipulation by gold nanobumps

Wei Lun Hsu, Chia Min Chang, Cheng Hung Chu, I. Da Chiang, Ming Lun Tseng, Yao Wei Huang, Hsin Wei Huang, Bo Han Chen, Ding Wei Huang, Din Ping Tsai

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

Abstract

Gold nanobumps on the surface of a gold thin film would scatter surface plasmon wave to forward and backward scattering light. Both dot array and chains of gold nanobumps are built to demonstrate the light-manipulating properties. While fan-shaped forward scattering light from individual nanobump is observed, three-dimensional (3-D) light focusing and diverging properties is found from quarter circle structure composed of nanobumps. Nanobumps with their heights of 16nm can deflect the surface plasmon waves to produce 3-D focusing at 3.6 micron above the surface of gold film. Experiment results clearly demonstrate that 3-D forward and backward focusing from gold nanobumps are with different amplitudes and directions of the vertical propagation vectors.

Original languageEnglish
Title of host publicationFrontiers in Optics, FIO 2013
PublisherOptical Society of America
ISBN (Print)9781557529879
Publication statusPublished - 6 Oct 2013
Externally publishedYes
EventFrontiers in Optics, FIO 2013 - Orlando, FL, United States
Duration: 6 Oct 201310 Oct 2013

Publication series

NameOptics InfoBase Conference Papers
ISSN (Electronic)2162-2701

Conference

ConferenceFrontiers in Optics, FIO 2013
CountryUnited States
CityOrlando, FL
Period6/10/1310/10/13

ASJC Scopus subject areas

  • Instrumentation
  • Atomic and Molecular Physics, and Optics

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