Intersubband absorption in highly photoe
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S. Hanna; S.R. Schmidt; V.A. Shalygin; D.A. Firsov; L.E. Vorobjev; V.M. Ustinov;
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Article
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2003
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Elsevier Science
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English
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Transient mid infrared (MIR) absorption spectroscopy is used to investigate transitions between higher electronic subbands in semiconductor quantum well (QW) structures after interband photoexcitation with intense picosecond pulses in the visible spectral range. Our investigation focuses on the e2-e