Observation of 1.798 μm intersubband transition in InGaAs/AlAs pseudomorphic quantum well heterostructures
- 20 September 1993
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 63 (12) , 1663-1665
- https://doi.org/10.1063/1.110729
Abstract
The well-width dependence of intersubband transition energies in InGaAs/AlAs pseudomorphic quantum well structures has been studied, and the shortest intersubband wavelength reported to date, 1.798 μm, has been observed for 6 monolayer wells. Both transverse electric and transverse magnetic optical polarizations are absorbed, with an energy splitting of 67 meV between them.Keywords
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