摘要
介绍了从激光光源到同步辐射光源及自由电子激光光源的发展及特性,及所需新型光阴级材料的特性。当代科学研究的前沿之一是研究微观世界的动态特征,这就需要同时具有纳米的空间分辨和飞秒的时间分辨。X射线激光的超快特性和高亮度,结合超快探测器条纹相机的高时间分辨和空间分辨,将十分有助于微观世界的动态特性研究。报告了对单晶体Cu(100)和Cu(111)金属光阴级材料和半导体复合光阴级材料研究所取得的成果,以及对磁性材料Fe/Gd和用飞秒激光在Cu中产生的高热高密度物质的动力学研究。
2010 is the 50th anniversary of the invention of laser. I will describe the evolution of laser, synchrotron radiation light and new generation light source-free electron laser （also called x-ray laser）. Novel photocathode is identified as a key area of research needed to meet the challenge of next generation light sources, where in particular, it operates at very high repetition rate and low emittance. One front field of scientific research in the world is to study the ultra-fast and ultra-small world. The combination of high brightness and ultra-fast pulse of x-ray laser with ultra-fast detector will make important contributions to the ultrafast dynamic study of the ultra-small world. The work function, vectorial photoelectric effect and angle resolved photoemission of single-crystal surface of typically used metallic photocathode and multi-alkali photocathode will be reported. The ultra-fast dynamics of magnetism material Fe/Gd and the warm-dense-matter generated by focusing a fs laser on Cu will also be reported.
出处
《光学与光电技术》
2011年第4期1-4,共4页
Optics & Optoelectronic Technology
