Science. 1991 Feb 1;251(4993):531-6. doi: 10.1126/science.251.4993.531.
A high-temperature plasma is created when an intense laser pulse is focused onto the surface of a solid. An ultrafast pulse of x-ray radiation is emitted from such a plasma when the laser pulse length is less than a picosecond. A high-speed streak camera detector was used to determine the duration of these x-ray pulses, and computer simulations of the plasmas agree with the experimental results. Scaling laws predict that brighter and more efficient x-ray sources will be obtained by the use of more intense laser pulses. These sources can be used for time-resolved x-ray scattering studies and for the development of x-ray lasers.
当强激光脉冲聚焦到固体表面时，会产生高温等离子体。当激光脉冲长度小于皮秒时，这种等离子体就会发出超快的 X 射线脉冲。高速条纹相机探测器用于确定这些 X 射线脉冲的持续时间，而对等离子体的计算机模拟与实验结果相符。标度定律预测，通过使用更强的激光脉冲，可以获得更亮、更高效的 X 射线源。这些源可用于时间分辨的 X 射线散射研究和 X 射线激光的开发。
