A tunable low-energy photon source for high-resolution angle-resolved photoemission spectroscopy

John W. Harter, Philip D. C. King, Eric J. Monkman, Daniel E. Shai, Yuefeng Nie, Masaki Uchida, Bulat Burganov, Shouvik Chatterjee, Kyle M. Shen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)
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Abstract

We describe a tunable low-energy photon source consisting of a laser-driven xenon plasma lamp coupled to a Czerny-Turner monochromator. The combined tunability, brightness, and narrow spectral bandwidth make this light source useful in laboratory-based high-resolution photoemission spectroscopy experiments. The source supplies photons with energies up to ~7 eV, delivering under typical conditions >10(12) ph/s within a 10 meV spectral bandwidth, which is comparable to helium plasma lamps and many synchrotron beamlines. We first describe the lamp and monochromator system and then characterize its output, with attention to those parameters which are of interest for photoemission experiments. Finally, we present angle-resolved photoemission spectroscopy data using the light source and compare its performance to a conventional helium plasma lamp.

Original languageEnglish
Article number113103
Number of pages5
JournalReview of Scientific Instruments
Volume83
Issue number11
DOIs
Publication statusPublished - Nov 2012

Keywords

  • Photons
  • Monochromators
  • Photoemission
  • Visible spectra
  • Plasma sources

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