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Summary form only given. There is intense current interest in the dynamical properties of self-organized InAs quantum dots from fundamental and applied viewpoints. We report here measurement and analysis of the depopulation dynamics of the lowest electronic states following resonant excitation by a femtosecond pulse. Our results, obtained by using a high-sensitivity differential transmission technique...
Summary form only given. Terahertz time-domain spectroscopy (THz TDS) and its extension to probing the transient properties of materials through pump-probe measurements have been shown to be powerful probes of the steady-state and dynamical properties of charge carriers. While the method has been applied extensively to solids such as semiconductors and superconductors, it has not yet been exploited...
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