Figure 1: Time-resolved pump–probe response of the NW laser.
From: Long-term mutual phase locking of picosecond pulse pairs generated by a semiconductor nanowire laser
(a) Schematic illustration of a NW laser emitting a coherent pulse pair. (b) Optical spectra recorded as a function of the pump–probe delay Δt. (c) Corresponding theoretical results obtained using the optical Bloch equation model described in the text. b,c depict situations for a fixed pump pulse power in the lasing regime and three different probe pulse powers: L-SE: probe pulse in the spontaneous emission regime (probe pulse power Pprobe∼0.6 × Pth), L-ASE: probe pulse in the amplified spontaneous emission regime (Pprobe∼1.9 × Pth) and L-L: probe pulse in the lasing regime (Pprobe∼4.7 × Pth). The data are plotted on a linear colour scale.
