Schwoerer H, Liesfeld B, Schlenvoigt H-P, Amthor K-U, Sauerbrey R
Institut für Optik und Quantenelektronik, Friedrich-Schiller-Universität, Max-Wien-Platz 1, 07743 Jena, Germany.
Phys Rev Lett. 2006 Jan 13;96(1):014802. doi: 10.1103/PhysRevLett.96.014802. Epub 2006 Jan 10.
We present the first observation of Thomson-backscattered light from laser-accelerated electrons. In a compact, all-optical setup, the "photon collider," a high-intensity laser pulse is focused into a pulsed He gas jet and accelerates electrons to relativistic energies. A counterpropagating laser probe pulse is scattered from these high-energy electrons, and the backscattered x-ray photons are spectrally analyzed. This experiment demonstrates a novel source of directed ultrashort x-ray pulses and additionally allows for time-resolved spectroscopy of the laser acceleration of electrons.
我们首次观测到了来自激光加速电子的汤姆逊背散射光。在一个紧凑的全光学装置“光子对撞机”中，高强度激光脉冲聚焦到脉冲氦气喷流中，将电子加速到相对论能量。反向传播的激光探测脉冲从这些高能电子上散射，对背散射的X射线光子进行光谱分析。该实验展示了一种定向超短X射线脉冲的新型源，此外还能对电子的激光加速进行时间分辨光谱分析。
