Electrically probing photonic bandgap phenomena in contacted defect nanocavities

Abstract

We demonstrate an electrically tunable two dimensional photonic crystal nanocavity containing InAs self assembled quantum dots. Photoluminescence and electroluminescence measurements are combined to probe the cavity mode structure and demonstrate a local electrical contact to the quantum dots. Measurements performed as a function of the electric field enable us to probe the capture, relaxation and recombination dynamics of photogenerated carriers inside the quantum dots emitting into a modified photonic environment. Furthermore, the two dimensional photonic crystal is probed by spatially dependent photocurrent spectroscopy indicating a 3.5x enhancement of the local radiative lifetime of the QDs inside the photonic crystal environment.

References in corpus (4)

• Quantum nature of a strongly-coupled single quantum dot-cavity system
• Self-tuned quantum dot gain in photonic crystal lasers
• Frequency control of photonic crystal membrane resonators by mono-layer deposition
• Efficient Spatial Redistribution of Quantum Dot Spontaneous Emission from 2D Photonic Crystals

Cited by in corpus (7)

• Resolution of the mystery of counter-intuitive photon correlations in far off-resonance emission from a quantum dot-cavity system
• Electrical control of spontaneous emission and strong coupling for a single quantum dot
• Dephasing of quantum dot exciton polaritons in electrically tunable nanocavities
• Mutual Coupling of two Semiconductor Quantum Dots via an Optical Nanocavity Mode
• Enhanced spontaneous emission in a photonic crystal light-emitting diode
• Highly efficient single photon emission from single quantum dots within a two-dimensional photonic bandgap
• Non-resonant feeding of photonic crystal nanocavity modes by quantum dots