From Random Telegraph to Gaussian Stochastic Noises: Decoherence and Spectral Diffusion in a Semiconductor Quantum Dot

Figure 6

(a), (b), (c): Interferogram contrast 𝐶(𝑡) of the photoluminescence signal of a single InAs/GaAs quantum dot at 10 K, on semilogarithmic plots, for three different incident powers: 0.18 (a), 0.72 (b), and 2.88 kW·cm−2 (c). Data (squares), system response function (dotted line), theoretical fits (solid line) obtained by the convolution of the system response function with 𝜙_𝐺𝑁(𝑡). (d) Fitting parameter Σ𝜏_𝑐 versus incident power. Data (symbols), and calculations (solid lines) are plotted as a function of incident power, on a semilogarithmic scale.

(a)

(b)

(c)

(d)