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

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

doi:10.1063/1.4939759

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

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

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

Abstract

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 × 10¹² photons/s, and enables photoemission with energy and momentum resolutions better than 2 meV and 0.012 Å^-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^-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.

Original language	English
Article number	011301
Journal	Review of Scientific Instruments
Volume	87
Issue number	1
DOIs	https://doi.org/10.1063/1.4939759
State	Published - Jan 1 2016
Externally published	Yes

Funding

The authors acknowledge enlightening discussions with Donghui Lu and Makoto Hashimoto. Samples are kindly provided by Wei Li, Ian Fisher, and Hiroshi Eisaki. A.J.M. acknowledges partial support for the VUV light source development from the National Science Foundation under SBIR Grant No. 0848526. S.L.Y. acknowledges Stanford Graduate Fellowship for support. This work is a collaboration between Lumeras LLC and Stanford Institute for Materials and Energy Sciences (SIMES). The photoemission studies were supported by the Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering.

Funders	Funder number
Hiroshi Eisaki
Lumeras LLC
Stanford Institute for Materials and Energy Sciences
National Science Foundation
U.S. Department of Energy
Directorate for Engineering	0848526
Basic Energy Sciences
Small Business Innovation Research
Division of Materials Sciences and Engineering

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He, Y., Vishik, I. M., Yi, M., Yang, S., Liu, Z., Lee, J. J., Chen, S., Rebec, S. N., Leuenberger, D., Zong, A., Jefferson, C. M., Moore, R. G., Kirchmann, P. S., Merriam, A. J., & Shen, Z. X. (2016). Invited Article: High resolution angle resolved photoemission with tabletop 11 eV laser. Review of Scientific Instruments, 87(1), Article 011301. https://doi.org/10.1063/1.4939759

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abstract = "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 × 1012 photons/s, and enables photoemission with energy and momentum resolutions better than 2 meV and 0.012 {\AA}-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 {\AA}-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.",

author = "Yu He and Vishik, {Inna M.} and Ming Yi and Shuolong Yang and Zhongkai Liu and Lee, {James J.} and Sudi Chen and Rebec, {Slavko N.} and Dominik Leuenberger and Alfred Zong and Jefferson, {C. Michael} and Moore, {Robert G.} and Kirchmann, {Patrick S.} and Merriam, {Andrew J.} and Shen, {Zhi Xun}",

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AU - Jefferson, C. Michael

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N2 - 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 × 1012 photons/s, and enables photoemission with energy and momentum resolutions better than 2 meV and 0.012 Å-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-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.

AB - 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 × 1012 photons/s, and enables photoemission with energy and momentum resolutions better than 2 meV and 0.012 Å-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-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.

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

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