Jarnac A, Wang Xiaocui, Bengtsson Å U J, Ekström J C, Enquist H, Jurgilaitis A, Kroon D, Persson A I H, Pham V-T, Tu C M, Larsson J
Department of Physics, Lund University, P.O. Box 118, SE-221 00 Lund, Sweden.
MAX IV Laboratory, Lund University, P.O. Box 118, SE-221 00 Lund, Sweden.
Struct Dyn. 2017 Oct 6;4(5):051102. doi: 10.1063/1.4993730. eCollection 2017 Sep.
We have studied an X-ray switch based on a gold coated indium antimonide crystal using time-resolved X-ray diffraction and demonstrated that the switch could reduce the pulse duration of a 100 ps X-ray pulse down to 20 ps with a peak reflectivity of 8%. We have used a dynamical diffraction code to predict the performance of the switch, which was then confirmed experimentally. The experiment was carried out at the FemtoMAX beamline at the short-pulse facility of the MAX IV laboratory. The performance and limitation of the switch are discussed in terms of acoustic transport properties between the two materials and the electron transport properties of gold.
我们使用时间分辨X射线衍射研究了一种基于镀金锑化铟晶体的X射线开关，并证明该开关能够将100皮秒X射线脉冲的脉冲持续时间缩短至20皮秒，峰值反射率为8%。我们使用动态衍射代码预测了该开关的性能，随后通过实验得到了证实。实验在MAX IV实验室短脉冲设施的FemtoMAX光束线上进行。从两种材料之间的声传输特性和金的电子传输特性方面讨论了该开关的性能和局限性。
