Data for "Exciton formation dynamics in (Ga,In,)As quantum wells"

Abstract

This dataset contains the experimental data presented in the paper “Exciton formation dynamics in (Ga,In)As quantum wells". A combination of optical pump - terahertz probe spectrsocopy and time-resolved photoluminescence was used to investigate the dynamics of exciton formation processes in (Ga,In)As multi quantum wells. All datasets are provided in tab-separated values format. Most files begin with a header row containing column titles that describe the respective contents and indicate the varied parameters. The 2D data are labeled acoordingly. Figure 1 a).txt This file contains the absorption of the primary sample as well as the pump pulses used. The first column is the energy axis, the following correspond to absorption and pump pulses. Figure 1 b).txt This file contains the absorption of the secondary sample as well as the pump pulses used. The first column is the energy axis, the following correspond to absorption and pump pulse. Figure 2 a).txt This file contains the real part of the dielectric function for 3ps and 600 ps time delay. The first column ist the energy axis, while the follwoing contain the experimental data and the fitting data. Figure 2 b).txt This file contains the absorption for 3ps and 600 ps time delay. The first column ist the energy axis, while the follwoing contain the experimental data and the fitting data. Figure 2 c).txt This file contains the normalized exciton densities and the bi- and tri-exponential fits of the primary sample. First column contains the time axis while the following contain extracted data and fitting curves. Figure 2 d).txt This file contains the normalized exciton densities and and tri-exponential fit of the secondary sample. First column contains the time axis while the following contain extracted data and fitting curves. Figure 3 a).txt This file contains the THz absorption data for the comparison with TRPL. The first column contains the energy axis while the subsequent columns contain the absorption data. Time delays are in the corresponding header. Figure 3 b).txt This file contains the TRPL for comparison with THz absorption. The first column contains the time delay while the subsequent columns contain the absorption data. Energies are in the corresponding header. Figure 4a).txt This file contains the change of THz absorption and the corresponding change of the real part of the dielectric function for three excitation densities. The first half of the file contains the energy axis followed by the change of THz absorption while the second half contains the energy axis followed by the change of the real part of the dielectric funktion. Figure 4 b).txt This file contains the exciton densities divided by excitation intensity for three excitation densities. The first column contains the time axis while the following contain the extracted data as well as the corresponding tri-exponential fits. Figure 5.txt This file contains the THz absorption after resonant excitation for different THz field strengths for the secondary sample. First column contains the energy axis while the others contain the THz absorption data. Figure 6 a).txt This file contains the THz absorption for a field strength of 238V/cm. First column contains the energy axis while the following contain the absorption data. Figure 6 b).txt This file contains the THz absorption for a field strength of 3577V/cm. First column contains the energy axis while the following contain the absorption data. Figure 6 c).txt This file contains the THz absorption difference for weak minus strong THz. The first column contains the energy axis while the following contain the absorption data. The corresponding time delays are given in the header. Figure 7.txt This file contains the oscillator strenghts extracted from the differential method for four excitation densities and the bi- and tri-exponential fits for the secondary sample. The first column contains the time axis while the following contain the extracted data as well as the corresponding fit curves.