Invited Article: High resolution angle resolved photoemission with tabletop 11 eV laser

Journal Article · Fri Jan 15 00:00:00 EST 2016 · Review of Scientific Instruments

DOI:https://doi.org/10.1063/1.4939759· OSTI ID:22482805

He, Yu; Vishik, Inna M.; Yi, Ming; Yang, Shuolong; Lee, James J.; Chen, Sudi; Rebec, Slavko N.; Leuenberger, Dominik; Shen, Zhi-Xun ^[1]; Liu, Zhongkai ^[1]; Zong, Alfred ^[2]; Jefferson, C. Michael; Merriam, Andrew J. ^[3]; Moore, Robert G.; Kirchmann, Patrick S. ^[1]

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1. SIMES, SLAC National Accelerator Laboratory, Menlo Park, California 94025 (United States)
2. Department of Physics, Stanford University, Stanford, California 94305 (United States)
3. Lumeras LLC, 207 McPherson St, Santa Cruz, California 95060 (United States)

We developed a table-top vacuum ultraviolet (VUV) laser with 113.778 nm wavelength (10.897 eV) and demonstrated its viability as a photon source for high resolution angle-resolved photoemission spectroscopy (ARPES). This sub-nanosecond pulsed VUV laser operates at a repetition rate of 10 MHz, provides a flux of 2 × 10{sup 12} photons/s, and enables photoemission with energy and momentum resolutions better than 2 meV and 0.012 Å{sup −1}, respectively. Space-charge induced energy shifts and spectral broadenings can be reduced below 2 meV. The setup reaches electron momenta up to 1.2 Å{sup −1}, granting full access to the first Brillouin zone of most materials. Control over the linear polarization, repetition rate, and photon flux of the VUV source facilitates ARPES investigations of a broad range of quantum materials, bridging the application gap between contemporary low energy laser-based ARPES and synchrotron-based ARPES. We describe the principles and operational characteristics of this source and showcase its performance for rare earth metal tritellurides, high temperature cuprate superconductors, and iron-based superconductors.

• OSTI ID: 22482805
• Journal Information: Review of Scientific Instruments, Vol. 87, Issue 1; Other Information: (c) 2016 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
BRILLOUIN ZONES
EV RANGE 10-100
FAR ULTRAVIOLET RADIATION
IRON
LASERS
MHZ RANGE 01-100
PHOTOELECTRON SPECTROSCOPY
PHOTOEMISSION
PHOTONS
RARE EARTHS
RESOLUTION
SUPERCONDUCTORS
SYNCHROTRONS