Fig. 1: Single-photon interference.
From: Quantum teleportation using highly coherent emission from telecom C-band quantum dots
a Spectrum of the QD measured at Psat with exciton (X) and biexciton (XX) labelled. The shaded area denotes the part of the spectrum used for these measurements. b Time-resolved intensity of X. The solid line is a fit to a biexponential decay. c Single-photon interference measurements of the X at 0.75 Psat (pink) and 0.03 Psat (purple). The visibility oscillates at the beat frequency corresponding to the FSS of the X transition. Solid lines are fits to the data according to a Fourier transform of a double Lorentzian. d Coherence time (T2) extracted from the fits (blue) and integrated intensity (purple) as a function of excitation power. Error bars on integrated intensity are within the symbol size, and shaded areas denote standard error.
