Freiburg 2024 – wissenschaftliches Programm

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Q: Fachverband Quantenoptik und Photonik

Q 55: Poster VI

Q 55.23: Poster

Donnerstag, 14. März 2024, 17:00–19:00, Tent B

Computer Simulation Framework for coherent two-dimensional electronic Spectroscopy — •Joel Ströhmann and Mario Agio — Laboratory of Nano Optics, Universität Siegen, Siegen, Germany

2D spectroscopy represents the electric field intensity as a correlation map of two independent variables, e.g. the excitation and emission frequency of a quantum system. This allows the deconvolution of different spectral features along the second axis, in particular the presence of coherent couplings in off-diagonal peaks between the coupled states. My masters project was to summarize the mathematical formulation of the optical response function for an arbitrary pulse trail based on perturbation theory and develop a software framework for the automated computation of the optical response. The system's properties and the pulse shape are provided as external parameters to the software and the numerical simulation is carried out either with full integration over the pulse envelope or in the semi-impulsive limit. In particular, the computation of the optical response of an arbitrary number of two-level systems with arbitrary, lossless pair-wise couplings can be computed automatically including dephasing and population relaxation for each two-level system.

Keywords: 2D spectroscopy; simulation; optical response; single emitters; coherence