Open AccessGeneration of ultra‐large‐bandwidth X‐ray free‐electron‐laser pulses with a transverse‐gradient undulator
Author(s) -
Prat Eduard,
Calvi Marco,
Reiche Sven
Publication year - 2016
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/s1600577516007177
Subject(s) - undulator , optics , transverse plane , bandwidth (computing) , free electron laser , physics , cathode ray , laser , electron , radiation , free electron model , materials science , computer science , telecommunications , structural engineering , quantum mechanics , engineering
A new and simple method to generate X‐ray free‐electron‐laser radiation with unprecedented spectral bandwidth above the 10% level is presented. The broad bandwidth is achieved by sending a transversely tilted beam through a transverse‐gradient undulator. The extent of the bandwidth can easily be controlled by variation of the beam tilt or the undulator gradient. Numerical simulations confirm the validity and feasibility of this method.