期刊
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS
卷 46, 期 16, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/0953-4075/46/16/164027
关键词
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资金
- National Basic Research Program of China (973 Program) [2013CB922200]
- National Natural Science Foundation of China [11274232]
- Shanghai Committee of Science and Technology [09DJ1400700]
- Chinese Academy Sciences
- DFG [Kl-1439/3, Kl-1439/5]
- Cluster of Excellence: Munich Center for Advanced Photonics
- Chemical Sciences, Geosciences and Biosciences Division, Office of Basic Energy Sciences, Office of Science, US Department of Energy [DE-FG02-86ER13491]
- Ministry of Education, Culture, Sports, Science and Technology of Japan
Few-photon induced ultrafast dynamics in acetylene (C2H2) leading to several dissociation channels-deprotonation (H++C2H+ and H++C2H2+), symmetric break-up (CH++CH+) and isomerization (C++CH2+)-were investigated employing the (XUV; extreme ultra-violet)-pump-(XUV; extreme ultra-violet)-probe scheme at the free-electron laser in Hamburg, combined with multi-hit coincidence detection. The kinetic energy releases and fragment-ion momentum distributions for various decay channels are presented. The C++CH2+ and H++C2H2+ channels reveal clear signatures of ultrafast molecular mechanisms, demonstrating potential applications of our pump-probe technique to complex systems in order to study a large variety of ultrafast phenomena in the XUV regime.
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