Signature of multi-channel interference in high-order harmonic generation from N2 driven by intense mid-infrared pulses
Atomic Physics
2013-06-04 v1
Abstract
We investigate the multi-electron dynamics in high-order harmonic generation (HHG) from N2 molecules. Clear spectral minima are observed in the cutoff region at all three mid-infrared wavelengths (i.e., 1300, 1400 and 1500 nm) chosen in our experiment. It is found that the positions of the spectral minima do not depend on the alignment angles of molecules. In addition, the spectral minima shift almost linearly with the increasing laser intensity at all three wavelengths, which provides a strong evidence on the dynamic multi-channel interference origin of these minima. The advantages of observation of dynamic multi-channel interference based on HHG driven by long wavelength lasers are discussed.
Keywords
Cite
@article{arxiv.1306.0177,
title = {Signature of multi-channel interference in high-order harmonic generation from N2 driven by intense mid-infrared pulses},
author = {Guihua Li and Jinping Yao and Xinhua Xie and Hongqiang Xie and Bin Zeng and Wei Chu and Chenrui Jing and Jielei Ni and Haisu Zhang and Xiaojun Liu and Jing Chen and Ya Cheng and Zhizhan Xu},
journal= {arXiv preprint arXiv:1306.0177},
year = {2013}
}
Comments
17 pages, 6 figures