文献类型：期刊文献

英文题名：Enhanced high-order harmonic generation from spatially prepared filamentation in argon

作者：Wei, Pengfei[1,2];Yuan, Xiaolong[2];Liu, Candong[2];Zeng, Zhinan[2];Zheng, Yinghui[2];Jiang, Jiaming[3];Ge, Xiaochun[2];Li, Ruxin[2]

机构：[1]Shaoxing Univ, Dept Phys, Shaoxing 312000, Peoples R China;[2]Chinese Acad Sci, Shanghai Inst Opt & Fine Mech, State Key Lab High Field Laser Phys, Shanghai 201800, Peoples R China;[3]Tongji Univ, Sch Phys Sci & Engn, Shanghai 200092, Peoples R China

年份：2015

卷号：23

期号：13

起止页码：17229

外文期刊名：OPTICS EXPRESS

收录：SCI-EXPANDED(收录号：WOS:000358543300072)、、EI(收录号：20153701274822)、Scopus(收录号：2-s2.0-84941312825)、WOS

基金：This work was supported by the National Natural Science Foundation of China (Nos. 11127901, 61221064, 11134010, 11227902, 11222439, 11274325, 11404356, 61108012, and 11474223), the National 973 Project (No. 2011CB808103), the Zhejiang Provincial Natural Science Foundation of China (No. LY14F050008), the Shanghai Commission of Science and Technology Yangfan Project (No. 14YF1406000), the Shanghai Institute of Optics and Fine Mechanics Specialized Research Fund (Grant No. 1401561J00), and the Open Fund of the State Key Laboratory of High Field Laser Physics.

语种：英文

外文关键词：Argon - Ground state - Harmonic generation - Laser pulses

外文摘要：We experimentally demonstrate enhanced high-order harmonic generation (HHG) from spatially prepared filamentation in Argon. Upon shifting the focus position of an elliptically polarized laser pulse over the filament induced by a linearly polarized laser pulse, an obvious enhancement of harmonic yield by nearly one order of magnitude is observed. The result could be interpreted in terms of the double contributions from both the excited states of target atom and the phase-matching effect of harmonic beam. In contrast to the enhancement phenomena, an obvious suppression of harmonic yield is also presented, which could be attributed to both the ground-state depletion and the plasma effect. (C) 2015 Optical Society of America