Design of metal-cladded near-field fiber probes with a dispersive body-of-revolution finite-difference time-domain method

被引:15
作者
Liu, L [1 ]
He, SL
机构
[1] Zhejiang Univ, Joint Res Ctr Photon, Royal Inst Technol, Ctr Opt & Electromagnet Res, Hangzhou 310027, Peoples R China
[2] Zhejiang Univ, Lab Modern Opt Instrumentat, Hangzhou 310027, Peoples R China
[3] Royal Inst Technol, Dept Microelect & Informat Technol, Lab Photon & Microwave Engn, S-16440 Kista, Sweden
关键词
D O I
10.1364/AO.44.003429
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A dispersive body-of-revolution finite-difference time-domain method is developed to simulate metal-cladded near-field scanning optical microscope (NSOM) probes. Two types of NSOM probe (aperture and plasmon NSOM probes) are analyzed and designed with this fast method. The influence of the metal-cladding thickness and the excitation mode on the performance of the NSOM probes is studied. We introduce a new scheme of illumination-mode NSOM by employing the plasmon NSOM probe with the TM01 mode excitation. Such a NSOM probe is designed, and we demonstrate its advantages over the conventional aperture NSOM probe by scanning across a metallic object. (c) 2005 Optical Society of America.
引用
收藏
页码:3429 / 3437
页数:9
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