Geometric effect on photonic nanojet generated by dielectric microcylinders with non-cylindrical cross-sections
學年 105
學期 1
出版（發表）日期 2016-12-01
作品名稱 Geometric effect on photonic nanojet generated by dielectric microcylinders with non-cylindrical cross-sections
作品名稱（其他語言） 使用非圓柱狀介電微米柱研究幾何變化對於光子奈米噴流生成的影響
著者 Cheng-Yang Liu; Fan-Chih Lin; 劉承揚
單位
出版者
著錄名稱、卷期、頁數 Optics Communications 380, p.287-296
摘要 We experimentally report the geometric effect on photonic nanojet generated by dielectric microcylinders with non-cylindrical cross-sections. The non-cylindrical cross-sections include truncated microcylinders and elliptical microcylinders. The truncated microcylinder is formed with the cutting thickness. The elliptical microcylinder is defined by ratio of minor to major axes. The specific spatial electromagnetic fields for microcylinders with different non-cylindrical cross-sections are studied by using finite-difference time-domain calculation. The direct imaging of photonic nanojets for microcylinders with different non-cylindrical cross-sections are performed with a scanning optical microscope system. The field distribution and location of photonic nanojet depending on the various spatial shapes are experimentally demonstrated. The photonic nanojet with long focal length and low divergence could be used to scan over a target to obtain a large area image when the non-cylindrical micro-media are coupled with a conventional optical microscope.
關鍵字 Photonic nanojet;microcylinder;subwavelength
語言 en
ISSN 0030-4018;1873-0310
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 Cheng-Yang Liu; 劉承揚
審稿制度 是
國別 NLD
公開徵稿
出版型式 ,電子版,紙本
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/107068 )