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Terahertz Magneto-spectroscopy of Quantum Wells: Stability of High-Density Excitons in High Magnetic Fields

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Abstract

We study the dynamics of excitons in GaAs quantum wells via optical-pump/terahertz-probe spectroscopy in magnetic fields. We found that the 1s-2p- intra-excitonic transition is robust at high magnetic fields even under high excitation fluences, indicating magnetically enhanced stability of excitons.

© 2015 Optical Society of America

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