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Title: Angle-resolved photoemission spectroscopy with 9-eV photon-energy pulses generated in a gas-filled hollow-core photonic crystal fiber

A recently developed source of ultraviolet radiation, based on optical soliton propagation in a gas-filled hollow-core photonic crystal fiber, is applied here to angle-resolved photoemission spectroscopy (ARPES). Near-infrared femtosecond pulses of only few μJ energy generate vacuum ultraviolet radiation between 5.5 and 9 eV inside the gas-filled fiber. These pulses are used to measure the band structure of the topological insulator Bi{sub 2}Se{sub 3} with a signal to noise ratio comparable to that obtained with high order harmonics from a gas jet. The two-order-of-magnitude gain in efficiency promises time-resolved ARPES measurements at repetition rates of hundreds of kHz or even MHz, with photon energies that cover the first Brillouin zone of most materials.
Authors:
; ; ;  [1] ; ; ; ; ;  [2] ;  [1] ;  [3] ; ;  [4] ;  [1] ;  [5]
  1. Max Planck Institute for the Structure and Dynamics of Matter, Luruper Chaussee 149, 22761 Hamburg (Germany)
  2. Max Planck Institute for the Science of Light, Günther-Scharowsky-Str. 1, 91058 Erlangen (Germany)
  3. (Italy)
  4. Max Planck Institute for Solid State Research, Heisenbergstr. 1, 70569 Stuttgart (Germany)
  5. (United Kingdom)
Publication Date:
OSTI Identifier:
22489180
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 9; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; BISMUTH SELENIDES; BRILLOUIN ZONES; CRYSTALS; EV RANGE 01-10; FAR ULTRAVIOLET RADIATION; FIBERS; GAIN; HARMONICS; KHZ RANGE; MHZ RANGE; PHOTOELECTRON SPECTROSCOPY; PHOTONS; PULSES; SIGNAL-TO-NOISE RATIO; SOLITONS; TIME RESOLUTION