Signatures of Förster and Dexter transfer processes in coupled nanostructures for linear and two-dimensional coherent optical spectroscopy

Judith F. Specht; Marten Richter

doi:10.1117/12.2076586

14 March 2015 Signatures of Förster and Dexter transfer processes in coupled nanostructures for linear and two-dimensional coherent optical spectroscopy

Judith F. Specht, Marten Richter

Author Affiliations +

Proceedings Volume 9361, Ultrafast Phenomena and Nanophotonics XIX; 93610A (2015) https://doi.org/10.1117/12.2076586
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

In this manuscript, we study the impact of the two Coulomb induced resonance energy transfer processes, Förster and Dexter coupling, on the spectral signatures obtained by double quantum coherence spectroscopy. We show that the specific coupling characteristics allow us to identify the underlying excitation transfer mechanism by means of specific signatures in coherent spectroscopy. Therefore, we control the microscopic calculated coupling strength of spin preserving and spin flipping Förster transfer processes by varying the mutual orientation of the two quantum emitters. The calculated spectra reveal the optical selection rules altered by Förster and Dexter coupling between two semiconductor quantum dots. We show that Dexter coupling between bright and dark two-exciton states occurs.

Citation Download Citation

Judith F. Specht, Judith F. Specht, Marten Richter, Marten Richter, "Signatures of Förster and Dexter transfer processes in coupled nanostructures for linear and two-dimensional coherent optical spectroscopy", Proc. SPIE 9361, Ultrafast Phenomena and Nanophotonics XIX, 93610A (14 March 2015); doi: 10.1117/12.2076586; https://doi.org/10.1117/12.2076586

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