Mid infrared emission of quantum wire cascade structures
| Autor: | A. P. Mayer, Stefan Schmult, Thomas Herrle, Werner Wegscheider, Dieter Schuh, I. R. Keck, Max Bichler, Gerhard Abstreiter |
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| Rok vydání: | 2004 |
| Předmět: |
Materials science
business.industry Quantum wire Heat sink Condensed Matter Physics Laser Condensed Matter::Mesoscopic Systems and Quantum Hall Effect 530 Physik Atomic and Molecular Physics and Optics Quantum wires Cleaved edge overgrowth Quantum cascade emitter Mid infrared emission Electronic Optical and Magnetic Materials law.invention law Atomic electron transition Cascade Radiative transfer Wavenumber Optoelectronics business Quantum |
| DOI: | 10.5283/epub.1628 |
| Popis: | A novel mid infrared emitting GaAs/AlGaAs quantum wire cascade device is presented that is fabricated using the cleaved edge overgrowth technique. The samples are pumped electrically. Radiative electronic transitions between discrete energy levels in coupled quantum wires are calculated for such a structure. Operation current dependent mid infrared emission is observed at a peak wave number of 1200 cm −1 with a full-width at half-maximum of 300 cm −1 at a heat sink temperature of 20 K . The presented sample is an experimental proposal for an unipolar quantum wire intersubband laser. |
| Databáze: | OpenAIRE |
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