Beam splitting and recombining of the radiation from an EUV free-electron laser by means of reflection gratings

Luca Poletto; Paolo Azzolin; Giuseppe Tondello; Giampiero Naletto

doi:10.1117/12.504160

28 January 2004 Beam splitting and recombining of the radiation from an EUV free-electron laser by means of reflection gratings

Luca Poletto, Paolo Azzolin, Giuseppe Tondello, Giampiero Naletto

Author Affiliations +

Proceedings Volume 5194, Fourth-Generation X-Ray Sources and Ultrafast X-Ray Detectors; (2004) https://doi.org/10.1117/12.504160
Event: Optical Science and Technology, SPIE's 48th Annual Meeting, 2003, San Diego, California, United States

Abstract

We present the optical design of systems for the splitting of the radiation from a FEL at 40 and 10 nm, in the framework of a proposal made fro Elettra Synchrotron (Trieste, Italy) to the Italian Ministry of Education, Universities and Research for the construction and operation of an ultra-high brillance source in the EUV and soft X-ray region. It is important to design systems for the beam-splitting of the EUV radiation, both for having the FEL radiation available simultaneously to several experiments, and for the division and recombination of the beam (pump-probe techniques). We present systems with a grazing-incidence plane grating, which is illuminated by the single FEL beam and gives several output beams (the zero order and the diffracted orders). The grating gives intrinsically a time stretching of the diffracted beam, so time-compensated configurations must be used, i.e. the configurations in which a second grating compensates for the distortion given by the first grating. Different systems are presented: 1) splitting of the primary beam in several secondary beams for different experiments; 2) splitting and recombining of the primary beam in two beams with variable delay from two different directions; 3) splitting and recombining of the primary beam in two beams with variable delay and same direction.

Citation Download Citation

Luca Poletto, Paolo Azzolin, Giuseppe Tondello, and Giampiero Naletto "Beam splitting and recombining of the radiation from an EUV free-electron laser by means of reflection gratings", Proc. SPIE 5194, Fourth-Generation X-Ray Sources and Ultrafast X-Ray Detectors, (28 January 2004); https://doi.org/10.1117/12.504160

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