Observation of Optically Pumped Intersubband Emission From Quantum Wells
Document Type
Conference Proceeding
Publication Date
10-1-1990
Identifier/URL
43039157 (Pure)
Abstract
We report the first observation of optically pumped spontaneous emission from intersubband transitions by electrons in an n-type GaAs/A1GaAs coupled-quantum-well structure. Electrons were pumped from the first to fourth conduction subbands with a CW CO2 laser operating at a photon energy of 133 meV. The transition from the fourth to the third subbands occurred at an energy of 17 meV and had a full width at half-maximum of 3 meV.
Repository Citation
Bales, J. W.,
McIntosh, K. A.,
Soilner, T. C.,
Goodhue, W. D.,
& Brown, E. R.
(1990). Observation of Optically Pumped Intersubband Emission From Quantum Wells. Proceedings of SPIE - The International Society for Optical Engineering, 1283, 74-81.
https://corescholar.libraries.wright.edu/physics/1441
DOI
10.1117/12.20731
