Development of an Apparatus for In-situ Near-Field Photoexcitation in a Transmission Electron Microscope

被引：8
|
作者：
Ohno, Yutaka [1 ]
机构：
[1] Tohoku Univ, Inst Mat Res, Sendai, Miyagi 9808577, Japan
来源：
APPLIED PHYSICS EXPRESS | 2012年 / 5卷 / 12期
关键词：
PHOTOLUMINESCENCE SPECTROSCOPY; CATHODOLUMINESCENCE; DISLOCATIONS;
D O I：
10.1143/APEX.5.125204
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
An area observed with a transmission electron microscope (TEM) was illuminated with a far-field light probe (with a diameter of 10 mu m) under the TEM observation. A tungsten tip covered with a silver layer (with a diameter of 60nm at the tip apex) was placed close to the observed area, and an intense near-field light was induced in the immediate vicinity of the tip apex due to a tip-enhanced effect. By using the near-field light probe with a high spatial resolution beyond the diffraction limit of light, photo-induced glide of an individual dislocation was demonstrated in ZnO. (C) 2012 The Japan Society of Applied Physics
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