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(a) at 2 ps probe delay for the (full rectangular) and (full circle). dynamics (460 nm) at different pump energy 50 nJ/pulse (open circle) and 300 nJ/pulse (full circle) for (b) and (c) . Inset: vs pump energy.
Chemical structure of is shown. The cone represents the ; has an identical structure except without units. kinetics for (a) and (b) at 460 nm. PP kinetics (black spheres); PPP kinetics with re-excitation 3 ps after pump (open circle).
(a) Normalized laser emission (line) and ASE (dashed line) spectra for the . ASE for a (dotted line). Inset: Output intensity for a laser emission as a function of the absorbed pump fluence. (b) Laser emission spectrum (line) and emission when the laser is completely shut off (empty circles) by the gate. Inset (left side): the experimental set-up. Energy level diagram for optical gain media in the presence of the gate (right side).
Excitation conditions and threshold values for lasing for different CPs in DFB structure. Note, it is difficult to compare the values due to the different laser pulse duration used in the experiments.
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