The second derivative image method is a multi-band pass filter in Fourier space; suppressing its higher harmonics yields improved filters for ARPES and higher-dimensional spectroscopies when some spectral features are known in advance.
We recommend achieving this by setting T (ξ) = 0 for hξ > 2π
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Second derivative analysis and alternative data filters for multi-dimensional spectroscopies: a Fourier-space perspective
The second derivative image method is a multi-band pass filter in Fourier space; suppressing its higher harmonics yields improved filters for ARPES and higher-dimensional spectroscopies when some spectral features are known in advance.