Ultra-long photonic nanojet formed by dielectric cubes
學年 103
學期 2
發表日期 2015-04-13
作品名稱 Ultra-long photonic nanojet formed by dielectric cubes
著者 Liu, Cheng-Yang; Chang, Li-Jen
作品所屬單位 淡江大學機械與機電工程學系
出版者 Czech: SPIE
會議名稱 SPIE Optics + Optoelectronics 2015
會議地點 Prague, Czech Republic
摘要 The capability of generating photonic nanojets using dielectric cubes working in the visible light region is introduced and investigated numerically. The simulation of electric intensity distributions for a dielectric cube is performed using the finite-difference time-domain method. The focusing characteristic of the photonic nanojets is evaluated in terms of both focal length and transversal full width at half maximum along both transversal directions. Moreover, the ultra-long photonic nanojet is studied by theoretical calculations for a dielectric cube. By changing the dimension of the dielectric cube, it has been demonstrated that the focus point is moved from inside to outside the cube with a high intensity nanojet. The super resolution imaging of the dielectric cube can be expected from the focal length and the maximum intensity. The photonic nanojet enhancement and super resolution technique could be functional for the imaging of nano-scale targets on substrates and films.
關鍵字 Photonic nanojet; dielectric cube; subwavelength
語言 en
會議性質 國際
研討會時間 20150413~20150416
通訊作者 劉承揚
國別 CZE
公開徵稿 Y
出版型式 電子版
出處 Proc. of SPIE Vol. 9516 951610-1

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/102817 )