Figure 1
From: Post-processing of real-time quantum event measurements for an optimal bandwidth
Sample structure and random telegraph signal. (a) The QD is resonantly-excited by a tuneable laser and embedded in a pin-diode structure. Its charge state can be tuned by applying a voltage \(V_{\textrm{g}}\) to the diode that sets the ground state of the QD in resonance with the chemical potential of the \(\textrm{n}^+\)-doped back contact. (b) Schematic illustration of the conduction and valence band edge in respect to the chemical potential \(\mu\) (dashed line). (c) The resonance fluorescence signal of the QD is switching between “on” and “off” due to electrons tunneling between the QD and the charge reservoir.
