Kilohertz extreme-ultraviolet light source based on femtosecond high-order harmonic generation from noble gases

A compact, versatile table-top kilohertz source of coherent extreme-ultraviolet (XUV) radiation in the wavelength region 18--100 nm, based on high-order harmonic generation from noble gases induced by a 40-femtosecond Ti:sapphire laser system, is presented. The XUV beamline delivers at its output 10...

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Bibliographic Details
Published in:Applied physics. B, Lasers and optics Lasers and optics, 2001-11, Vol.73 (7), p.687-692
Main Authors: PAPADOGIANNIS, N. A, KALPOUZOS, C, GOULIELMAKIS, E, NERSISYAN, G, CHARALAMBIDIS, D, AUGE, F, WEIHE, F, BALCOU, Ph
Format: Article
Language:English
Subjects:
Exact sciences and technology
Femtosecond
Focusing
Frequency conversion
harmonic generation, including high-order harmonic generation
Fundamental areas of phenomenology (including applications)
Harmonic generation, frequency conversion
Harmonic generations
Krypton
Lasers
Noble gases
Nonlinear optics
Optical sources and standards
Optics
Physics
Rare gases
Visible and ultraviolet sources
Wavelengths
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Summary:A compact, versatile table-top kilohertz source of coherent extreme-ultraviolet (XUV) radiation in the wavelength region 18--100 nm, based on high-order harmonic generation from noble gases induced by a 40-femtosecond Ti:sapphire laser system, is presented. The XUV beamline delivers at its output 10 photons/s at a wavelength of 23 nm. The monochromatized XUV radiation is directly focused onto a 10-mm spot by a toroidal grating, allowing one to reach intensities higher than 10 W/cm. Optimization results are presented for a new XUV-generating geometry, utilizing a 'semi-infinite' quasi-static gas cell and strong focusing. In those conditions, we observe an anomalous inversion between the cutoffs of argon and krypton, with the krypton spectrum extending to much higher orders than expected in an adiabatic limit.
ISSN:0946-2171
1432-0649
DOI:10.1007/s003400100734