Title: | Table-top interferometry on extreme time and wavelength scales | Authors: | Skruszewicz, Slawomir Przystawik, Andreas Schwickert, David Sumfleth, Malte Namboodiri, Mahesh Hilbert, Vinzenz Klas, Robert Gierschke, Philipp Schuster, Vittoria Vorobiov, Anton Haunhorst, Christian Kip, Detlef Limpert, Jens Rothhardt, Jan Laarmann, Tim |
Language: | eng | Issue Date: | 2021 | Publisher: | Soc. | Document Type: | Article | Journal / Series / Working Paper (HSU): | Optics express | Volume: | 29 | Issue: | 24 | Page Start: | 40333 | Page End: | 40344 | Publisher Place: | Washington, DC | Abstract: | Short-pulse metrology and dynamic studies in the extreme ultraviolet (XUV) spectral range greatly benefit from interferometric measurements. In this contribution a Michelson-type all-reflective split-and-delay autocorrelator operating in a quasi amplitude splitting mode is presented. The autocorrelator works under a grazing incidence angle in a broad spectral range (10 nm - 1 μm) providing collinear propagation of both pulse replicas and thus a constant phase difference across the beam profile. The compact instrument allows for XUV pulse autocorrelation measurements in the time domain with a single-digit attosecond precision and a useful scan length of about 1 ps enabling a decent resolution of E/ΔE = 2000 at 26.6 eV. Its performance for selected spectroscopic applications requiring moderate resolution at short wavelengths is demonstrated by characterizing a sharp electronic transition at 26.6 eV in Ar gas. The absorption of the 11th harmonic of a frequency-doubled Yb-fiber laser leads to the well-known 3s3p64p1P1 Fano resonance of Ar atoms. We benchmark our time-domain interferometry results with a high-resolution XUV grating spectrometer and find an excellent agreement. The common-path interferometer opens up new opportunities for short-wavelength femtosecond and attosecond pulse metrology and dynamic studies on extreme time scales in various research fields. |
Organization Units (connected with the publication): | Experimentalphysik und Materialwissenschaften | URL: | http://arxiv.org/abs/2106.00333v2 | ISSN: | 1094-4087 1094-4087 |
Publisher DOI: | 10.1364/OE.446563 |
Appears in Collections: | 3 - Publication references (without fulltext) |
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