Open AccessTime dependence of the polarization of short X‐ray pulses after crystal reflection
Author(s) -
Graeff Walter
Publication year - 2002
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049502010117
Subject(s) - optics , polarization (electrochemistry) , monochromator , linear polarization , physics , perpendicular , reflection (computer programming) , crystal (programming language) , laser , atomic physics , chemistry , wavelength , geometry , mathematics , computer science , programming language
The short X‐ray pulses coming out of a SASE FEL (self‐amplified stimulated emission free‐electron laser) have stimulated a closer inspection of the response of a crystal reflection to them. As the reflectivity of a crystal reflection depends on the polarization of the incident radiation, the time response does so as well. The response to a δ‐pulse incident either under 45° linearly polarized with respect to the reflection plane of a monochromator crystal or circularly polarized is investigated in more detail. In contrast to the purely linear polarization perpendicular and parallel to the reflection plane, these mixed states show a very pronounced time dependence. In addition, a simulated SASE FEL bunch is investigated as an incident intensity distribution.