Time-Resolved Visualization of Laser-Induced Heating of Gold with MeV Ultrafast Electron Diffraction

Time-resolved electron diffraction employing MeV electron beams is demonstrated experimentally at the center for ultrafast diffraction and microscopy of Shanghai Jiao Tong University. A high-quality diffraction pattern is recorded by a single shot of electron pulse. Synchronization between the pump...

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Published inChinese physics letters Vol. 31; no. 11; pp. 111 - 114
Main Author 朱鹏飞 傅费超 刘圣广 向导 张杰 曹建明
Format Journal Article
LanguageEnglish
Published 01.11.2014
Subjects
Deflection
Electron beams
Electron diffraction
Femtosecond
Gold
Heating
Laser beams
Synchronism
上海交通大学
可视化
时间分辨
激光诱导加热
激光诱导等离子体
电子衍射实验
结构动力学
黄金
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Summary:Time-resolved electron diffraction employing MeV electron beams is demonstrated experimentally at the center for ultrafast diffraction and microscopy of Shanghai Jiao Tong University. A high-quality diffraction pattern is recorded by a single shot of electron pulse. Synchronization between the pump laser and the probe electron beam is achieved through measurement of electron deflection caused by the laser-induced plasmas in a metal tip. We study the ultrafast structural dynamics of the gold lattice excited by a femtosecond laser through tracing the change of Bragg peaks intensity at different time delays. It is expected that the combination of MeV ultrashort electron beams and femtoseeond laser pulses will open many new opportunities in the ultrafast and ultrasmall world.
Bibliography:11-1959/O4
Time-resolved electron diffraction employing MeV electron beams is demonstrated experimentally at the center for ultrafast diffraction and microscopy of Shanghai Jiao Tong University. A high-quality diffraction pattern is recorded by a single shot of electron pulse. Synchronization between the pump laser and the probe electron beam is achieved through measurement of electron deflection caused by the laser-induced plasmas in a metal tip. We study the ultrafast structural dynamics of the gold lattice excited by a femtosecond laser through tracing the change of Bragg peaks intensity at different time delays. It is expected that the combination of MeV ultrashort electron beams and femtoseeond laser pulses will open many new opportunities in the ultrafast and ultrasmall world.
ZHU Peng-Fei, FU Fei-Chao, LIU Sheng-Guang, XIANG Dao, ZHANG Jie, CAO Jian-Ming（ 1.Key Laboratory for Laser Plasmas （Ministry of Education）, Department of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai 200240 ;2.Department of Physics and National High Magnetic Field Laboratory, Florida State University, Tallahassee Florida 32310, USA）
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/31/11/116101