Regensburg 2013 – wissenschaftliches Programm
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HL: Fachverband Halbleiterphysik
HL 28: Poster Session: Graphen; Transport properties; Transport in high magnetic fields / Quantum Hall effect; Metal-semiconductor hybrid systems
HL 28.26: Poster
Montag, 11. März 2013, 16:00–20:00, Poster A
Influence of Förster interaction on the light emission statistics of hybrid systems — •T. Sverre Theuerholz, Alexander Carmele, Marten Richter, and Andreas Knorr — Institut für Theoretische Physik, Nichtlineare Optik und Quantenelektronik, Technische Universität Berlin, Germany
Hybrid systems consisting of semiconductor quantum dots (SQD) and metallic nanoparticles (MNP) are in the focus of current experimental and theoretical [1] research, since they may combine the advantages of both constituents.
In our contribution, we theoretically investigate a hybrid system of two SQDs and a MNP driven by coherent light. Within our theoretical framework, we focus on the second-order correlation plasmon-plasmon function g(2) and its dependency on the external field and on the internal interactions between the constituents. We find, that even relatively weak internal interactions, like the Förster coupling [2] between the SQDs, can have a significant impact on the second-order correlation function. Since the strength of this coupling depends on the size, shape and distance between the SQDs, it can be engineered to tune the g(2)-function. We also investigate how MNPs in the vicinity of SQDs influence the Förster interaction between the dots.
[1] A. Ridolfo, O. Di Stefano, N. Fina, R. Saija and S. Savaste, Phys. Rev. Lett. 105 (26), (2010)
[2] J. Danckwerts, K. J. Ahn, J. Förstner and A. Knorr, Phys. Rev. B 73 (16), (2006)