Abstract
CITIUS is a multi-partner and multi-disciplinary project lead by University of Nova Gorica (Slovenia) to develop a facility based on a high repetition rate and ultra-short tunable laser source that is used to produce ultrafast extreme-ultraviolet (XUV) pulses through high-order harmonic (HH) generation [1]. The XUV radiation is monochromatized and can be focused on different end-stations for materials and surface science and atomic and molecular physics and chemistry. We present here the characterization of the monochromatic XUV source. The HHs are generated in a gas cell using a Ti:Sa laser operated at 5-Khz repetition rate with an energy of 2 mJ/pulse. The XUV beam is monochromatized and focused in the experimental chamber. Since the beam is handled by a grating monochromator, a temporal broadening has to be accepted at the output due to the pulse front-tilt given by the diffraction [2]. In the case of the CITIUS beamline, an innovative single-grating configuration has been adopted, that combines in a single instrument two different grating geometries: the classical-diffraction mount (CDM) and the off-plane mount (OPM), as shown in Fig. 1. It has been demonstrated that the two geometries are complementary [3]: the CDM is used for relatively long instrumental response in the 100-200 fs range, and high spectral resolution, i.e. λ/Δλ > 200; the OPM is used for ultrashort responses in the 10-50 fs range and low spectral resolution, i.e. λ/Δλ < 200 [4].
© 2013 IEEE
PDF ArticleMore Like This
L. Poletto, M. Coreno, F. Frassetto, D. Gauthier, C. Grazioli, R. Ivanov, P. Miotti, B. Ressel, C. Spezzani, S. Stagira, and G. De Ninno
CFIE_P_16 International Quantum Electronics Conference (IQEC) 2013
L. Poletto and F. Frassetto
CF_P6 The European Conference on Lasers and Electro-Optics (CLEO/Europe) 2011
Tímea Grósz, Lénárd Gulyás Oldal, Tamás Csizmadia, Peng Ye, Zoltán Filus, Massimo De Marco, and Balázs Major
HF3B.2 High Intensity Lasers and High Field Phenomena (HILAS) 2022