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Temperature-dependent transparency conditions and spatial degeneracy in self-organized quantum dots

K. Kim, T. Norris, J. Singh, and P. Bhattacharya

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Abstract

We have used ultrafast spectroscopic measurements of gain spectra in self-organized quantum dots to measure directly the transparency condition at different temperatures and wavelengths. The results provide insight into the energy-dependent density-of-states and carrier thermalization in high-speed quantum-dot lasers.

© 2003 Optical Society of America

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