Generation of optical near-field orbital angular momentum in gold metasurface under linearly-polarized excitation

C.-F. Chen; C.-T. Ku; M.-Y. Pan; P.-K. Wei; C.-B. Huang

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Generation of optical near-field orbital angular momentum in gold metasurface under linearly-polarized excitation

C.-F. Chen, C.-T. Ku, M.-Y. Pan, P.-K. Wei and C.-B. Huang

Optics and Photonics Taiwan, International Conference

2014

Abstract

metasurface;optical vortex;Orbital angular momentum;plasmonics

Nanocavities inscribed in a gold thin film is optimized and arranged to form a metasurface. We demonstrate both numerically and experimentally that surface plasmon vortex carrying orbital angular momentum can be generated under linearly-polarized optical excitation.

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Title: Generation of optical near-field orbital angular momentum in gold metasurface under linearly-polarized excitation
Creators - without role: C.-F. Chen
C.-T. Ku
M.-Y. Pan
P.-K. Wei
C.-B. Huang - 國立清華大學電機資訊學院電機工程學系
Publication Details: Optics and Photonics Taiwan, International Conference
Identifiers: 9957777523806774
Academic Unit: Institute of Photonics Technologies, College of Electrical Engineering and Computer Science, National Tsing Hua University
Language: Traditional Chinese
Resource Type: Conference paper

Generation of optical near-field orbital angular momentum in gold metasurface under linearly-polarized excitation

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