English  |  正體中文  |  简体中文  |  Items with full text/Total items : 26988/38789
Visitors : 2345646      Online Users : 39
RC Version 4.0 © Powered By DSPACE, MIT. Enhanced by NTU Library IR team.
Scope Adv. Search
LoginUploadHelpAboutAdminister

Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47373

Title: Creating Optical Near-Field Orbital Angular Momentum in a Gold Metasurface
Authors: Chen-Bin Huang
Ching-Fu Chen
Chen-Ta Ku
Yi-Hsin Tai
Pei-Kuen Wei
Heh-Nan Lin
Contributors: 國立臺灣海洋大學:光電科學研究所
Keywords: plasmonics
metasurface
optical vortex
Orbital angular momentum
Date: 2015-08
Issue Date: 2018-07-17T03:13:32Z
Publisher: Nano Lett
Abstract: Abstract: Nanocavities inscribed in a gold thin film are optimized and designed to form a metasurface. We demonstrate both numerically and experimentally the creation of surface plasmon (SP) vortex carrying orbital angular momentum in the metasurface under linearly polarized optical excitation that carries no optical angular momentum. Moreover, depending on the orientation of the exciting linearly polarized light, we show that the metasurface is capable of providing dynamic switching between SP vortex formation or SP subwavelength focusing. The resulting SP intensities are experimentally measured using a near-field scanning optical microscope and are found in excellent quantitative agreements as compared to the numerical results.
Relation: 15(4) pp.2746–2750
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47373
Appears in Collections:[光電科學研究所] 期刊論文

Files in This Item:

File Description SizeFormat
index.html0KbHTML36View/Open


All items in NTOUR are protected by copyright, with all rights reserved.

 


著作權政策宣告: 本網站之內容為國立臺灣海洋大學所收錄之機構典藏,無償提供學術研究與公眾教育等公益性使用,請合理使用本網站之內容,以尊重著作權人之權益。
網站維護: 海大圖資處 圖書系統組
DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library IR team Copyright ©   - Feedback