Fourier-based methods for removing mesh anomalies from angle resolved photoemission spectra

Recent improvements to spatial resolution in angle-resolved photo-emission spectroscopy (ARPES) have made it common to perform measurements with a very brief dwell time, for the purpose of mapping the spectral function over large surface regions. However, rapid measurement modalities can suffer a gr...

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Published inJournal of electron spectroscopy and related phenomena Vol. 260
Main Authors Liu, Shouzheng, Kotta, Erica, Xu, Yishuai, Mutch, Joshua, Chu, Jiun-Haw, Hoesch, Moritz, Mahatha, Sanjoy Kr, Denlinger, Jonathan D., Wray, L. Andrew
Format Journal Article
LanguageEnglish
Published United States Elsevier 20.09.2022
Subjects
ARPES
Data analysis
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Mesh correction
Spectromicroscopy
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Abstract Recent improvements to spatial resolution in angle-resolved photo-emission spectroscopy (ARPES) have made it common to perform measurements with a very brief dwell time, for the purpose of mapping the spectral function over large surface regions. However, rapid measurement modalities can suffer a grid-like intensity modulation due to a wire mesh that is typically placed in front of the ARPES detector to block stray electrons. Here, we explore Fourier-based methods that can effectively remove this artifact, and improve the quality of ARPES images obtained in rapid scanning modes. In conclusion, an open source software package is provided containing implementations of demonstrated algorithms.
AbstractList Recent improvements to spatial resolution in angle-resolved photo-emission spectroscopy (ARPES) have made it common to perform measurements with a very brief dwell time, for the purpose of mapping the spectral function over large surface regions. However, rapid measurement modalities can suffer a grid-like intensity modulation due to a wire mesh that is typically placed in front of the ARPES detector to block stray electrons. Here, we explore Fourier-based methods that can effectively remove this artifact, and improve the quality of ARPES images obtained in rapid scanning modes. In conclusion, an open source software package is provided containing implementations of demonstrated algorithms.
Author Denlinger, Jonathan D.
Mahatha, Sanjoy Kr
Wray, L. Andrew
Xu, Yishuai
Chu, Jiun-Haw
Hoesch, Moritz
Liu, Shouzheng
Kotta, Erica
Mutch, Joshua
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  organization: New York University (NYU), NY (United States)
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  fullname: Kotta, Erica
  organization: New York University (NYU), NY (United States)
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  fullname: Xu, Yishuai
  organization: New York University (NYU), NY (United States)
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  fullname: Mutch, Joshua
  organization: University of Washington, Seattle, WA (United States)
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  fullname: Chu, Jiun-Haw
  organization: University of Washington, Seattle, WA (United States)
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  fullname: Hoesch, Moritz
  organization: Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
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  fullname: Mahatha, Sanjoy Kr
  organization: Thapar Institute of Engineering and Technology, Patiala (India); Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany)
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  fullname: Denlinger, Jonathan D.
  organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
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  orcidid: 0000000189770201
  fullname: Wray, L. Andrew
  organization: New York University (NYU), NY (United States)] (ORCID:0000000189770201
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Snippet Recent improvements to spatial resolution in angle-resolved photo-emission spectroscopy (ARPES) have made it common to perform measurements with a very brief...
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SubjectTerms ARPES
Data analysis
INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
Mesh correction
Spectromicroscopy
Title Fourier-based methods for removing mesh anomalies from angle resolved photoemission spectra
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Volume 260
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