Terahertz Magneto-Spectroscopy Of Quantum Wells: Stability Of High-Density Excitons In High Magnetic Fields

Qi Zhang,Weilu Gao,J D Watson,M J Manfra,Junichiro Kono

2015 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)（2015）

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摘要

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.

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关键词

spectroscopy,magnetic fields,excitons,gallium arsenide,optical amplifiers,magnetic resonance

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