Abstract

When modeling experimental 2D spectra, the effects of finite pulse durations are usually neglected to optimize computational costs. We present an analytic treatment of finite pulse duration effects on electronic 2D spectra. While the photon echo signal is more robust, the double quantum signal shows unexpected dependencies, based on mixing of absorptive and dispersive components. In the limit of Lorentzian pulse shapes, we compare the exact results of our analytically solvable approach to standard approximations made for finite pulse effects. We show how these approximations fail to reproduce the correct phase and amplitudes of vibrational oscillations.

© 2017 Optical Society of America

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Supplementary Material (1)

NameDescription
» Dataset 1       Mathematica notebooks containing analytical expressions of 2D spectra of a three-level electronic system probed by Lorentzian laser pulses.

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