Polaron signatures in the line shape of semiconductor ;intersubband transitions: quantum kinetics of the electron–phonon interaction
| Autor: | S. Butscher, I. Waldmüller, Jens Förstner, Andreas Knorr |
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| Rok vydání: | 2004 |
| Předmět: |
Physics
Absorption spectroscopy Condensed matter physics Condensed Matter::Other Scattering business.industry Resonance Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Condensed Matter Physics Polaron Kinetic energy Electronic Optical and Magnetic Materials Condensed Matter::Materials Science Semiconductor Condensed Matter::Strongly Correlated Electrons business Quantum Quantum well |
| Zdroj: | physica status solidi (b). 241:R49-R51 |
| ISSN: | 1521-3951 0370-1972 |
| DOI: | 10.1002/pssb.200409053 |
| Popis: | We present a theory of the optical line shape of coherent intersubband transitions in a semiconductor quantum well, considering non-Markovian LO-phonon scattering as major broadening mechanism. We show that a quantum kinetic approach leads to additional polaron resonances and a resonance enhancement for gap energies close to the phonon energy. |
| Databáze: | OpenAIRE |
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