Radiative emission dynamics of quantum dots in a single cavity micropillar

Abstract

The light emission of self-assembled (In,Ga)As/GaAs quantum dots embedded in single GaAs-based micropillars has been studied by time-resolved photoluminescence spectroscopy. The altered spontaneous emission is found to be accompanied by a non-exponential decay of the photoluminescence where the decay rate strongly depends on the excitation intensity. A microscopic theory of the quantum dot photon emission is used to explain both, the non-exponential decay and its intensity dependence. Also the transition from spontaneous to stimulated emission is studied.

9 pages, 6 figures, figure captions corrected

References in corpus (5)

• Electron spin relaxation by nuclei in semiconductor quantum dots
• Electron spin decoherence in quantum dots due to interaction with nuclei
• Zeeman energy and spin relaxation in a one-electron quantum dot
• Electron spin coherence in semiconductors: Considerations for a spin-based solid state quantum computer architecture
• Adiabatic Transfer of Electrons in Coupled Quantum Dots

Cited by in corpus (6)

• Combining directional light output and ultralow loss in deformed microdisks
• Enhanced spontaneous emission in a photonic crystal light-emitting diode
• Systematic study of carrier correlations in the electron-hole recombination dynamics of quantum dots
• Time-Resolved Studies of a Rolled-Up Semiconductor Microtube Laser
• Lifetime statistics in chaotic dielectric microresonators
• Experimental position-time entanglement with degenerate single photons