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Proceedings Paper

Intersubband absorption and wave function engineering in quantum-well structures
Author(s): Petter Helgesen; Richard Sizmann; Stian Lovold; Andre Paulsen
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Paper Abstract

We study optical intersubband transitions in quantum well structures as a function of the energy position of the excited state with respect to the continuum edge of the well. The position is varied from a bound state in the well to an extended state above the continuum edge. The experimental results are compared to theoretical calculations. In the case of strongly coupled quantum wells, a significantly larger peak absorption is observed than that for the normal wells with the same well width. We show that this is due to the camel back shaped ground state wave function in such structures.

Paper Details

Date Published: 3 September 1992
PDF: 10 pages
Proc. SPIE 1675, Quantum Well and Superlattice Physics IV, (3 September 1992); doi: 10.1117/12.137617
Show Author Affiliations
Petter Helgesen, Norwegian Defence Research Establishment (Norway)
Richard Sizmann, Norwegian Defence Research Establishment (Norway)
Stian Lovold, Norwegian Defence Research Establishment (Norway)
Andre Paulsen, Norwegian Telecom Research (Norway)


Published in SPIE Proceedings Vol. 1675:
Quantum Well and Superlattice Physics IV

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