Computational Modeling of Femtosecond Coherence Spectroscopy for Vibronic-Exciton Model Dimers*

Quantum beats can be created when femtosecond laser pulses are used in transient absorption spectroscopy measurements. We are interested in these quantum beats to better understand coupled molecular systems where we use a vibronic-exciton model for molecular dimers to model Femtosecond Coherence Spectroscopy (FCS). We present our work using computational methods to create spectra of the amplitude of the quantum beat as a function of quantum beat frequency and detection frequency for vibronic-exciton model dimers. We plan to extend the current analysis to multiple polymers such as trimers and tetramers.