摘要
以普通的石英光纤为材料 ,用熔拉腐蚀复合的方法制备出 nm量级的光纤探针 ,而后在针尖表面镀上数十 nm厚的金属膜 ,达到导电性 ,使其能传导隧道电流 ,从而研制出一种新型的扫描隧道显微镜(STM)光纤隧道探针 ,在 STM上取得了比较理想的实验结果。本文将光纤隧道探针与金属隧道探针作了比较 。
The nanometer order optical fiber rpobes are fabricated from ordinary single mode quartz optical fiber with the pulling etching method.The probe was evaporated on the surface by a metal film,whose thickness was tens nanometer order.Then the optical fiber probe had the property of conduct electricity,and could conduct tunnel current.This is a new optical fiber probe for scanning tunnel microscopy (STM),the good experimental results were obtained in STM.The comparison with this new probe to metal probes was given,and the property of this probe was analyzed.
出处
《光电子.激光》
EI
CAS
CSCD
北大核心
2002年第1期5-8,共4页
Journal of Optoelectronics·Laser
基金
国家自然科学基金资助项目 (698770 14 )
关键词
光纤探针
扫描隧道显微镜
石英光纤
隧道电流
扫描隧道图像
Optical fiber probe
Scanning tunnel microscopy (STM)
Tunnel current
Scanning tunnel diagram