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

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.
Authors:
; ; ;  [1] ;  [2] ; ;  [3] ; ;  [4]
  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. IFN-CNR Dipartimento di Fisica, Politecnico di Milano, 20133 Milan (Italy)
  4. Institute of Condensed Matter Physics (ICMP), École Polytechnique Fédérale de Lausanne (EPFL), CH-1015 Lausanne (Switzerland)
Publication Date:
OSTI Identifier:
22392285
Resource Type:
Journal Article
Resource Relation:
Journal Name: Review of Scientific Instruments; Journal Volume: 85; Journal Issue: 12; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
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