Interplay of coupling and superradiant emmision in the optical response of a double quantum dot

Details Interplay of coupling and superradiant emmision in the optical response of a double quantum dot Interplay of coupling and superradiant emmision in the optical response of a double quantum dot

2009-01-07

arxiv.org/abs/0901.0879v2

Phys. Rev. B 80, 115319 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

9 pages, 5 figures; considerably extended version

Scientific paper

10.1103/PhysRevB.80.115319

We study theoretically the optical response of a double quantum dot structure to an ultrafast optical excitation. We show that the interplay of a specific type of coupling between the dots and their collective interaction with the radiative environment leads to very characteristic features in the time-resolved luminescence as well as in the absorption spectrum of the system. For a sufficiently strong coupling, these effects survive even if the transition energy mismatch between the two dots exceeds by far the emission linewidth.

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