Figure 2: Static Stark tuning and spontaneous emission control.
From: Dynamically controlling the emission of single excitons in photonic crystal cavities
(a) Low temperature micro photoluminescence (mPL) spectra for 800 nW excitation power for different direct-current (DC) voltages applied to the diode. A weakly coupled single-exciton line-labelled QD1 is enhanced when tuned across the L3 cavity mode. The yellow line is a guide to the eye. (b) Time-resolved photoluminescence (TRPL) decay curves of the quantum dot QD1 out of (light blue hexagons) and in (red circles) resonance with the cavity mode for T=10 K. The quantum dots (QDs) ensemble decay in the bulk is measured as reference (green curve) and the decay time constants are calculated from single and double exponential fits (grey lines) including the convolution with the IRF of the detector (black line).
