Report
Spectrally tunable ultrashort monochromatized extreme ultraviolet pulses at 100 kHz
| العنوان: | Spectrally tunable ultrashort monochromatized extreme ultraviolet pulses at 100 kHz |
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| المؤلفون: | Csizmadia, Tamás, Filus, Zoltán, Grósz, Tímea, Ye, Peng, Oldal, Lénárd Gulyás, De Marco, Massimo, Jójárt, Péter, Seres, Imre, Bengery, Zsolt, Gilicze, Barnabás, Lucchini, Matteo, Nisoli, Mauro, Frassetto, Fabio, Samparisi, Fabio, Poletto, Luca, Varjú, Katalin, Kahaly, Subhendu, Major, Balázs |
| سنة النشر: | 2022 |
| المجموعة: | Physics (Other) |
| مصطلحات موضوعية: | Physics - Optics, Physics - Atomic Physics |
| الوصف: | We present the experimental realization of spectrally tunable, ultrashort, quasi-monochromatic extreme ultraviolet (XUV) pulses generated at 100 kHz repetition rate in a user-oriented gas high harmonic generation (GHHG) beamline of the Extreme Light Infrastructure - Attosecond Light Pulse Source (ELI ALPS) facility. Versatile spectral and temporal shaping of the XUV pulses are accomplished with a double-grating, time-delay compensated monochromator accommodating the two composing stages in a novel, asymmetrical geometry. This configuration supports the achievement of high monochromatic XUV flux (2.8+/-0.9*1e10 photons/s at 39.7 eV selected with 700 meV FWHM bandwidth) combined with ultrashort pulse duration (4.0+/-0.2 fs using 12.1+/-0.6 fs driving pulses) and small spot size (sub-100 um). Focusability, spectral bandwidth, and overall photon flux of the produced radiation were investigated covering a wide range of instrumental configurations. Moreover, complete temporal (intensity and phase) characterization of the few-femtosecond monochromatic XUV pulses - a goal that is difficult to achieve by conventional reconstruction techniques - has been realized using ptychographic algorithm on experimentally recorded XUV-IR pump-probe traces. The presented results contribute to in-situ, time-resolved experiments accessing direct information on the electronic structure dynamics of novel target materials. Comment: 20 pages, 8 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1063/5.0147576 |
| URL الوصول: | http://arxiv.org/abs/2211.02955 |
| رقم الانضمام: | edsarx.2211.02955 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1063/5.0147576 |
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