A precise method for visualizing dispersive features in image plots

Details A precise method for visualizing dispersive features in image plots A precise method for visualizing dispersive features in image plots

2011-04-08

arxiv.org/abs/1104.1524v2

Review of Scientific Instruments 82, 043712 (2011)

Physics

Data Analysis, Statistics and Probability

7 pages, 4 figures. Copyright 2011 American Institute of Physics. This article may be downloaded for personal use only. Any ot

Scientific paper

10.1063/1.3585113

In order to improve the advantages and the reliability of the second derivative method in tracking the position of extrema from experimental curves, we develop a novel analysis method based on the mathematical concept of curvature. We derive the formulas for the curvature in one and two dimensions and demonstrate their applicability to simulated and experimental angle-resolved photoemission spectroscopy data. As compared to the second derivative, our new method improves the localization of the extrema and reduces the peak broadness for a better visualization on intensity image plots.

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