Phase-matched high-order harmonic generation in a gas cell with midinfrared femtosecond pulses

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Title Phase-matched high-order harmonic generation in a gas cell with midinfrared femtosecond pulses
Author Fu, Yuxi; Xiong, Hui; Xu, Han; Yao, Jinping; Yu, Yongli; Zeng, Bin; Chu, Wei; Liu, Xiaojun; Chen, Jing; Cheng, Ya; Xu, Zhizhan
Journal Name Physical Review A (Atomic, Molecular and Optical Physics)
Year Published 2009
Place of publication United States
Publisher American Physical Society
Abstract We experimentally investigate the generation of high-order harmonics in a 4-mm-long gas cell using midinfrared femtosecond pulses at various wavelengths of 1240 nm, 1500 nm, and 1800 nm. It is observed that the yield and cutoff energy of the generated high-order harmonics critically depend on focal position, gas pressure, and size of the input beam which can be controlled by an aperture placed in front of the focal lens. By optimizing the experimental parameters, we achieve a cutoff energy at ∼190 eV with the 1500 nm driving pulses, which is the highest for the three wavelengths chosen in our experiment.
Peer Reviewed Yes
Published Yes
Alternative URI http://dx.doi.org/10.1103/PhysRevA.79.013802
Volume 79
Issue Number 1
Page from 013802-1
Page to 013802-6
ISSN 1050-2947
Date Accessioned 2011-11-26; 2012-02-16T05:30:47Z
Date Available 2012-02-16T05:30:47Z
Research Centre Centre for Quantum Dynamics
Faculty Faculty of Science, Environment, Engineering and Technology
Subject Atomic and Molecular Physics; Nonlinear Optics and Spectroscopy
URI http://hdl.handle.net/10072/42770
Publication Type Journal Articles (Refereed Article)
Publication Type Code c1x

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