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Dr. Grzegorz Sęk, Wrocław University of Technology, Poland
Monday 10 March 2014, 15:15-16:15
Optical properties of exotic epitaxial nanostructures with respect to nanophotonic applications
- 👤 Speaker: Dr. Grzegorz Sęk, Wrocław University of Technology, Poland
- 📅 Date & Time: Monday 10 March 2014, 15:15 - 16:15
- 📍 Venue: Mott Seminar Room, Cavendish Laboratory, Department of Physics
Abstract
Optical properties of semiconductor nanostructures have recently been exploited for quantum-electrodynamics-based applications such as single photon sources, nanolasers, the ultimate single-dot thresholdless laser, or emitters of entangled photon pairs. For these purposes strongly anisotropic epitaxial quantum-dot-like structures (e.g. quantum dashes) can potentially be considered, mainly due to their easily tunable emission wavelength covering well the range of the 2nd and 3rd telecommunication windows.
I will present spectroscopic results on polarization of emission of such dots, the importance of exciton-phonon coupling, exciton fine structure splitting, exciton complexes, their binding energies and kinetics of emission, including the single photon emission at 1.3-1.55 µm detected via the exciton emission autocorrelation with the g(2)(0) values as low as 0.1.
Series This talk is part of the Semiconductor Physics Group Seminars series.
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