Distortion correction and momentum representation of angle-resolved photoemission data

Angle Resolve Photoemission Spectroscopy (ARPES) experiments provides a map of intensity as function of angles and electron kinetic energy to measure the many-body spectral function, but the raw data returned by standard apparatus is not ready for analysis. An image warping based distortion correcti...

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Main Author: Rosen, Jonathan Adam
Format: Others
Language:English
Published: University of British Columbia 2009
Online Access:http://hdl.handle.net/2429/5317
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spelling ndltd-UBC-oai-circle.library.ubc.ca-2429-53172018-01-05T17:23:16Z Distortion correction and momentum representation of angle-resolved photoemission data Rosen, Jonathan Adam Angle Resolve Photoemission Spectroscopy (ARPES) experiments provides a map of intensity as function of angles and electron kinetic energy to measure the many-body spectral function, but the raw data returned by standard apparatus is not ready for analysis. An image warping based distortion correction from slit array calibration is shown to provide the relevant information for construction of ARPES intensity as a function of electron momentum. A theory is developed to understand the calculation and uncertainty of the distortion corrected angle space data and the final momentum data. An experimental procedure for determination of the electron analyzer focal point is described and shown to be in good agreement with predictions. The electron analyzer at the Quantum Materials Laboratory at UBC is found to have a focal point at cryostat position 1.09mm within 1.00 mm, and the systematic error in the angle is found to be 0.2 degrees. The angular error is shown to be proportional to a functional form of systematic error in the final ARPES data that is highly momentum dependent. Science, Faculty of Physics and Astronomy, Department of Graduate 2009-03-02T16:31:07Z 2009-03-02T16:31:07Z 2008 2008-11 Text Thesis/Dissertation http://hdl.handle.net/2429/5317 eng Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ 2042301 bytes application/pdf University of British Columbia
collection NDLTD
language English
format Others
sources NDLTD
description Angle Resolve Photoemission Spectroscopy (ARPES) experiments provides a map of intensity as function of angles and electron kinetic energy to measure the many-body spectral function, but the raw data returned by standard apparatus is not ready for analysis. An image warping based distortion correction from slit array calibration is shown to provide the relevant information for construction of ARPES intensity as a function of electron momentum. A theory is developed to understand the calculation and uncertainty of the distortion corrected angle space data and the final momentum data. An experimental procedure for determination of the electron analyzer focal point is described and shown to be in good agreement with predictions. The electron analyzer at the Quantum Materials Laboratory at UBC is found to have a focal point at cryostat position 1.09mm within 1.00 mm, and the systematic error in the angle is found to be 0.2 degrees. The angular error is shown to be proportional to a functional form of systematic error in the final ARPES data that is highly momentum dependent. === Science, Faculty of === Physics and Astronomy, Department of === Graduate
author Rosen, Jonathan Adam
spellingShingle Rosen, Jonathan Adam
Distortion correction and momentum representation of angle-resolved photoemission data
author_facet Rosen, Jonathan Adam
author_sort Rosen, Jonathan Adam
title Distortion correction and momentum representation of angle-resolved photoemission data
title_short Distortion correction and momentum representation of angle-resolved photoemission data
title_full Distortion correction and momentum representation of angle-resolved photoemission data
title_fullStr Distortion correction and momentum representation of angle-resolved photoemission data
title_full_unstemmed Distortion correction and momentum representation of angle-resolved photoemission data
title_sort distortion correction and momentum representation of angle-resolved photoemission data
publisher University of British Columbia
publishDate 2009
url http://hdl.handle.net/2429/5317
work_keys_str_mv AT rosenjonathanadam distortioncorrectionandmomentumrepresentationofangleresolvedphotoemissiondata
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