Tip expansion in a laser assisted scanning tunneling microscope

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	Tip expansion in a laser assisted scanning tunneling microscope
	Xie, N ; Gong, HQ ; Yan, SC ; Zhao, JM ; Shan, XY ; Guo, Y ; Sun, Q ; Lu, XH
刊名	APPLIED PHYSICS LETTERS
	2012
卷号	101 期号:21
关键词	THERMAL-EXPANSION SPECTROSCOPY NANOSCALE JUNCTIONS EMISSION DYNAMICS
ISSN号	0003-6951
通讯作者	Lu, XH (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要	The thermal expansion of a scanning tunneling microscope tip induced by femtosecond laser is investigated with various parameters including laser power, modulation frequency, illumination spot, and laser wavelength. The magnitude of tip expansion is measured to be proportional to the laser power. The response bandwidth is closely related to the length of the tip cone section, which is consistent with a two-rod model simulation. While visible lasers produce significant tip expansion, deep ultraviolet and near infrared lasers result in significantly reduced expansion magnitude, which can be explained with the tip induced surface plasmon in the tunneling junction. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4767877]
收录类别	SCI
资助信息	Chinese Academy of Sciences [07C3021B51]; NSFC [11174347]; National Basic Research Program of China [2012CB933002]
语种	英语
公开日期	2013-09-23
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/45937]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Xie, N,Gong, HQ,Yan, SC,et al. Tip expansion in a laser assisted scanning tunneling microscope[J]. APPLIED PHYSICS LETTERS,2012,101(21).
APA	Xie, N.,Gong, HQ.,Yan, SC.,Zhao, JM.,Shan, XY.,...&Lu, XH.(2012).Tip expansion in a laser assisted scanning tunneling microscope.APPLIED PHYSICS LETTERS,101(21).
MLA	Xie, N,et al."Tip expansion in a laser assisted scanning tunneling microscope".APPLIED PHYSICS LETTERS 101.21(2012).