Observation of infrared intersubband emission in optically pumpedquantum wells |
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| Authors: | Moussa Z Boucaud P Julien FH Lavon Y Sa'ar A Berger V Nagle J Coron N |
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| Institution: | Inst. d'Electron. Fondamentale, Univ. de Paris-Sud, Orsay; |
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| Abstract: | Mid-infrared intersubband emission is investigated in GaAs/AlGaAs asymmetric coupled quantum wells exhibiting an energy separation between the ground and first excited subbands close to the LO-phonon energy. The authors show that an infrared emission occurs between excited subbands under intersubband optical pumping |
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