Fine interference fringes formed in high-order harmonic spectra generated by infrared driving laser pulses
Author(s)
Xu, Han
Xiong, Hui
Zeng, Zhinan
Fu, Yuxi
Yao, Jinping
Li, Ruxin
Cheng, Ya
Xu, Zhizhan
Griffith University Author(s)
Year published
2008
Metadata
Show full item recordAbstract
We experimentally investigate the high-order harmonic generation in argon gas using a driving laser pulse at a center wavelength of 1240 nm. High-contrast fine interference fringes could be observed in the harmonic spectra near the propagation axis, which is attributed to the interference between long and short quantum paths. We also systematically examine the variation of the interference fringe pattern with increasing energy of the driving pulse and with different phase-matching conditions.We experimentally investigate the high-order harmonic generation in argon gas using a driving laser pulse at a center wavelength of 1240 nm. High-contrast fine interference fringes could be observed in the harmonic spectra near the propagation axis, which is attributed to the interference between long and short quantum paths. We also systematically examine the variation of the interference fringe pattern with increasing energy of the driving pulse and with different phase-matching conditions.
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Journal Title
Physical Review A
Volume
78
Issue
3
Subject
Atomic and Molecular Physics
Nonlinear Optics and Spectroscopy
Mathematical Sciences
Physical Sciences
Chemical Sciences