Enhanced high-order harmonic generation from periodic potentials in inhomogeneous laser fields
Optics
2016-09-12 v1 Atomic Physics
Abstract
We theoretically study high-order harmonic generation (HHG) from solid-phase systems in spatially inhomogeneous strong laser fields originated by resonant plasmons within a metallic nanostructure. The intensity of the second plateau in HHG may be enhanced by two-three orders and be comparable with the intensity of the first plateau. This is due to bigger transition probabilities to higher conduction bands. It provides us a practical way to increase the yields of HHG with laser intensity below the damage threshold. It presents a promising way to triple the range of HHG spectra in experimental measurements. It also allows to generate intense isolated attosecond pulse from solids driven by few-cycle laser fields.
Cite
@article{arxiv.1605.02516,
title = {Enhanced high-order harmonic generation from periodic potentials in inhomogeneous laser fields},
author = {Tao-Yuan Du and Zhong Guan and Xiao-Xin Zhou and Xue-Bin Bian},
journal= {arXiv preprint arXiv:1605.02516},
year = {2016}
}