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Square of the optical absorption coefficient vs photon energy in the samples A and B.
Kinetics of DT for probe photon energy above (upper part, induced bleaching) and below (lower part, induced absorption) the absorption edge in sample A. Decay times of the slow components of kinetics are shown in the plot.
Recovery time of DT vs probe photon energy for the samples A and B. For comparison, recovery times of optical bleaching in InN with the similar carrier density are given in the plot. Dashed lines are eye guides only.
Kinetics of FCA decay in sample A at various pump energy densities: experimental data (points) and numerical fitting (lines) using Eq. (1). The numerically determined recombination coefficient is given in the plot.
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