Universität zu Köln

Cilento, F., Crepaldi, A., Manzoni, G., Sterzi, A., Zacchigna, M., Bugnon, Ph., Berger, H. and Parmigiani, F. (2016). Advancing non-equilibrium ARPES experiments by a 9.3 eV coherent ultrafast photon source. J. Electron Spectrosc. Relat. Phenom., 207. S. 7 - 14. AMSTERDAM: ELSEVIER. ISSN 1873-2526

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Abstract

The quest for investigating the non-equilibrium dynamics of the band structure of strongly-correlated materials over their entire Brillouin zone is a primary objective. However, the actual ultrafast UV light sources are not suitable for addressing several critical questions in the field. Here we report on a novel light source generating sub-250 fs, 9.3 eV photon energy light pulses at 250 kHz repetition rate, obtained via third-harmonic generation in Xe of frequency-doubled 50 fs laser pulses at 1.55 eV. By reporting the measured band dispersion of a Cu(111) crystal and the non-equilibrium dynamics of the Bi2Se3 topological insulator, we prove that this source is suitable for studying the non-equilibrium dynamics of the entire Fermi surface of several complex materials, with high signal statistics and limited space-charge effect. (C) 2015 Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Cilento, F. UNSPECIFIED UNSPECIFIED UNSPECIFIED Crepaldi, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Manzoni, G. UNSPECIFIED UNSPECIFIED UNSPECIFIED Sterzi, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Zacchigna, M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Bugnon, Ph. UNSPECIFIED UNSPECIFIED UNSPECIFIED Berger, H. UNSPECIFIED UNSPECIFIED UNSPECIFIED Parmigiani, F. UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-285227
DOI:	10.1016/j.elspec.2015.12.002
Journal or Publication Title:	J. Electron Spectrosc. Relat. Phenom.
Volume:	207
Page Range:	S. 7 - 14
Date:	2016
Publisher:	ELSEVIER
Place of Publication:	AMSTERDAM
ISSN:	1873-2526
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language REPETITION-RATE SOURCE; PHOTOELECTRON-SPECTROSCOPY; 3RD-HARMONIC GENERATION; HARMONIC-GENERATION; VUV GENERATION; LASER; PHOTOEMISSION; XENON; INSULATOR; CONVERSION Multiple languages Spectroscopy Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/28522