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A compact, turnkey, narrow-bandwidth, tunable, and high-photon-flux extreme ultraviolet source

: Hilbert, V.; Tschernajew, M.; Klas, R.; Limpert, J.; Rothhardt, J.

Fulltext ()

AIP Advances 10 (2020), No.4, Art. 045227, 7 pp.
ISSN: 2158-3226
Journal Article, Electronic Publication
Fraunhofer IOF ()

We report on a compact high-photon-flux extreme ultraviolet (XUV) source based on high harmonic generation. A high XUV-photon flux (>1013 photons/s) is achieved at 21.8 eV and 26.6 eV. The narrow spectral bandwidth (ΔE/E < 10−3) of the generated harmonics is in the range of state-of-the-art synchrotron beamlines and enables high resolution spectroscopy experiments. The robust design based on a fiber–laser system enables turnkey-controlled and even remotely controlled operation outside specialized laser laboratories, which opens the way for a variety of applications.