We measured time-resolved photoluminescence from large quantum dots near a semiconductor-air interface. Far from the interface our data are consistent with dipole theory, but near the interface they question the validity of the dipole approximation.
© 2008 Optical Society of America
(250.0250) Optoelectronics : Optoelectronics
(270.0270) Quantum optics : Quantum optics
(270.5580) Quantum optics : Quantum electrodynamics
(250.5590) Optoelectronics : Quantum-well, -wire and -dot devices
S. Stobbe, J. Johansen, A. Löffler, S. Höfling, A. Forchel, J. M. Hvam, and P. Lodahl, "Breakdown of the Dipole Approximation for Large Quantum Dot Emitters Coupled to an Interface," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, OSA Technical Digest (CD) (Optical Society of America, 2008), paper QThD4.
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