Two-color multiphoton emission for comprehensive reveal of ultrafast plasmonic field distribution
Two-color multiphoton emission for comprehensive reveal of ultrafast plasmonic field distribution
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双色多光子发射全面揭示超快等离子体场分布
DOI:
10.1088/1367-2630/aad145
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发表时间:
2018-07
影响因子:
3.3
通讯作者:
林景全
中科院分区:
文献类型:
--
作者:
季博宇;宋晓伟;窦银萍;陶海岩;高勋;郝作强;林景全
We experimentally demonstrate comprehensive reveal of the ultrafast plasmonic field distribution in a bowtie nanostructure by two-color photoemission electron microscopy (PEEM). We attribute the comprehensive reveal of the field distribution to an effective opening of the two-color quantum channel in multiphoton photoemission, which leads to a dramatic reduction of the nonlinear order (from 4.07 down to 2.01) of the plasmon-assisted photoelectrons and a huge increment of the photoemission yields (typically 20-fold enhancement). Furthermore, we have found that opening extent of the quantum channel strongly related with the photoemission yields generated from one-color 400 and 800 nm laser pulse illumination, and the optimized ratio between the yields for effective opening of two-color quantum channel in our experiment is also achieved. Additionally, benefiting from the high spatial resolution of PEEM, we found there exists a large difference in the nonlinear order of two-color photoemission under the plasmonic excitation within a nanostructure, which has not been reported yet. This work introduces multicolor quantum channel photoemission into the PEEM imaging and offers new way to flexibly control the nonlinear order of the plasmon-assisted photoemission, and it will enable PEEM as a versatile tool in many potential applications.
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DOI:
10.1088/1361-6463/aa83a0
发表时间:
2017-09
期刊:
Journal of Physics D: Applied Physics
影响因子:
--
作者:
B. Ji;Qian Wang;Xiao-wei Song;H. Tao;Yinping Dou;Xun Gao;Z. Hao;Jingquan Lin
通讯作者:
B. Ji;Qian Wang;Xiao-wei Song;H. Tao;Yinping Dou;Xun Gao;Z. Hao;Jingquan Lin
影响因子:
8.6
作者:
Cinchetti, M;Gloskovskii, A;Kreiter, M
通讯作者:
Kreiter, M
DOI:
10.1088/1742-6596/100/7/072031
发表时间:
2008-03
期刊:
--
影响因子:
--
作者:
N. Weber;M. Escher;M. Merkel;A. Oelsner;G. Schönhense
通讯作者:
N. Weber;M. Escher;M. Merkel;A. Oelsner;G. Schönhense
影响因子:
3
作者:
Atwater, Harry A.
通讯作者:
Atwater, Harry A.
影响因子:
10.8
作者:
Imura, Kohei;Ueno, Kosei;Okamoto, Hiromi
通讯作者:
Okamoto, Hiromi