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Energy transfer between quantum wells separated by a barrier is of fundamental interest in semiconductor physics. Such transfer also determines the dynamics of quantum-well devices, such as semiconductor quantumwell lasers and SEEDs. Among many transfer processes, tunneling of carriers between the wells has been investigated in detail by time- resolved spectroscopy. Thermal excitation over the barrier also contributes to the energy transfer at sufficiently high temperatures.
© 1992 Optical Society of America
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