Ultrafast Laser-Induced Electron Emission from Field Emission Tips

被引：0
|
作者：
Kealhofer, Catherine [1 ]
Foreman, Seth M. [1 ]
Hommelhoff, Peter [2 ]
Kasevich, Mark A. [1 ]
机构：
[1] Stanford Univ, Dept Phys, Stanford, CA 94305 USA
[2] Max Planck Inst Quantum Opt, Garching, Germany
来源：
ULTRAFAST PHENOMENA XVI | 2009年 / 92卷
关键词：
CYCLE;
D O I：
暂无
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
We describe a laser-triggered electron source based on a field emission tip. Numerical results indicate that the electron emission times can be sub-femtosecond. We are exploring applications of this source to ultrafast SEM, and have begun characterization of emission mechanisms in an alternate tip material, hafnium carbide. Here we observe a higher efficiency in laser emission and, at high power, non-additive scaling as the number of incident laser pulses per second is doubled.
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页码：702 / +
页数：2
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