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Updated: Nov 19, 2025

Excitonic Hamiltonians for Calculating Optical Absorption Spectra and Optoelectronic Properties of Molecular Aggregates and Solids
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Efficient numerical method for predicting nonlinear optical spectroscopies of open systems.

Peter A Rose1, Jacob J Krich1

  • 1Department of Physics, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada.

The Journal of Chemical Physics
|January 27, 2021
PubMed
Summary

A new open-source method, Ultrafast Ultrafast (UF2) spectroscopy, enables efficient prediction of nonlinear spectra from finite-duration pulses. This computational tool significantly accelerates quantum dynamics modeling for molecular and nanoscale systems.

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