An innovative Yb-based ultrafast deep ultraviolet source for time-resolved photoemission experiments

Journal Article · Mon Dec 15 00:00:00 EST 2014 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4903347· OSTI ID:22392285

Boschini, F.; Hedayat, H.; Dallera, C.; Cerullo, G. ^[1]; Farinello, P. ^[2]; Manzoni, C.; Magrez, A.; Berger, H. ^[3]

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1. Dipartimento di Fisica, Politecnico di Milano, 20133 Milan (Italy)
2. Dipartimento di Ingegneria Industriale e dell'Informazione, Università di Pavia, 27100 Pavia (Italy)
3. Institute of Condensed Matter Physics (ICMP), École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne (Switzerland)

Time- and angle-resolved photoemission spectroscopy is a powerful technique to study ultrafast electronic dynamics in solids. Here, an innovative optical setup based on a 100-kHz Yb laser source is presented. Exploiting non-collinear optical parametric amplification and sum-frequency generation, ultrashort pump (hν = 1.82 eV) and ultraviolet probe (hν = 6.05 eV) pulses are generated. Overall temporal and instrumental energy resolutions of, respectively, 85 fs and 50 meV are obtained. Time- and angle-resolved measurements on BiTeI semiconductor are presented to show the capabilities of the setup.

• OSTI ID: 22392285
• Journal Information: Review of Scientific Instruments, Vol. 85, Issue 12; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
AMPLIFICATION
ENERGY RESOLUTION
EV RANGE
KHZ RANGE 01-100
KHZ RANGE 100-1000
PHOTOELECTRON SPECTROSCOPY
PHOTOEMISSION
SEMICONDUCTOR MATERIALS
TIME RESOLUTION
ULTRAVIOLET RADIATION