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Transfer of Light Helicity to Nanostructures

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Title: Transfer of Light Helicity to Nanostructures
Authors: Toyoda, Kohei Browse this author
Takahashi, Fuyuto Browse this author
Takizawa, Shun Browse this author
Tokizane, Yu Browse this author
Miyamoto, Katsuhiko Browse this author
Morita, Ryuji Browse this author →KAKEN DB
Omatsu, Takashige Browse this author
Issue Date: 5-Apr-2013
Publisher: American Physical Society
Journal Title: Physical Review Letters
Volume: 110
Issue: 14
Start Page: 143603-1
End Page: 143603-5
Publisher DOI: 10.1103/PhysRevLett.110.143603
PMID: 25166987
Abstract: We discovered that chiral nanoneedles fabricated by vortex laser ablation can be used to visualize the helicity of an optical vortex. The orbital angular momentum of light determines the chirality of the nanoneedles, since it is transferred from the optical vortex to the metal. Only the spin angular momentum of the optical vortex can reinforce the helical structure of the created chiral nanoneedles. We also found that optical vortices with the same total angular momentum (defined as the sum of the orbital and spin angular momenta) are degenerate, and they generate nanoneedles with the same chirality and spiral frequency.
Rights: ©2013 American Physical Society
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 森田 隆二

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