High-efficiency water-window x-ray generation from nanowire array targets irradiated with femtosecond laser pulses
Plasma Physics
2021-02-24 v1 Optics
Abstract
We demonstrate the high-efficiency generation of water-window soft x-ray emissions from polyethylene nanowire array targets irradiated by femtosecond laser pulses at the intensity of 4*10^19 W/cm^2. The experimental results indicate more than one order of magnitude enhancement of the water-window x-ray emissions from the nanowire array targets compared to the planar targets. The highest energy conversion efficiency from laser to water-window x-rays is measured as 0.5%/sr, which comes from the targets with the longest nanowires. Supported by particle-in-cell simulations and atomic kinetic codes, the physics that leads to the high conversion efficiency is discussed.
Keywords
Cite
@article{arxiv.2012.08856,
title = {High-efficiency water-window x-ray generation from nanowire array targets irradiated with femtosecond laser pulses},
author = {Yinren Shou and Defeng Kong and Pengjie Wang and Zhusong Mei and Zhengxuan Cao and Zhuo Pan and Yunhui Li and Shirui Xu and Guijun Qi and Shiyou Chen and Jiarui Zhao and Yanying Zhao and Changbo Fu and Wen Luo and Guoqiang Zhang and Xueqing Yan and Wenjun Ma},
journal= {arXiv preprint arXiv:2012.08856},
year = {2021}
}