教師資料查詢 | 類別: 期刊論文 | 教師: 劉承揚 Cheng-yang Liu (瀏覽個人網頁)

標題:Large-area super-resolution optical imaging by using core-shell microfibers
學年106
學期1
出版(發表)日期2017/09/15
作品名稱Large-area super-resolution optical imaging by using core-shell microfibers
作品名稱(其他語言)
著者Cheng-Yang Liu; Wei-Chieh Lo
單位
出版者
著錄名稱、卷期、頁數Optics Communications 399, p.104-111
摘要We first numerically and experimentally report large-area super-resolution optical imaging achieved by using core-shell microfibers. The particular spatial electromagnetic waves for different core-shell microfibers are studied by using finite-difference time-domain and ray tracing calculations. The focusing properties of photonic nanojets are evaluated in terms of intensity profile and full width at half-maximum along propagation and transversal directions. In experiment, the general optical fiber is chemically etched down to 6 μm diameter and coated with different metallic thin films by using glancing angle deposition. The direct imaging of photonic nanojets for different core-shell microfibers is performed with a scanning optical microscope system. We show that the intensity distribution of a photonic nanojet is highly related to the metallic shell due to the surface plasmon polaritons. Furthermore, large-area super-resolution optical imaging is performed by using different core-shell microfibers placed over the nano-scale grating with 150 nm line width. The core-shell microfiber-assisted imaging is achieved with super-resolution and hundreds of times the field-of-view in contrast to microspheres. The possible applications of these core-shell optical microfibers include real-time large-area micro-fluidics and nano-structure inspections.
關鍵字Photonic nanojet;microfiber;super-resolution
語言英文
ISSN0030-4018
期刊性質國外
收錄於SCI;EI;
產學合作
通訊作者Cheng-Yang Liu
審稿制度
國別荷蘭
公開徵稿
出版型式,紙本
相關連結
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