Intersubband absorption and wave function engineering in quantum-well structures

Petter Helgesen; Richard Sizmann; Stian Lovold; Andre Paulsen

doi:10.1117/12.137617

3 September 1992 Intersubband absorption and wave function engineering in quantum-well structures

Petter Helgesen, Richard Sizmann, Stian Lovold, Andre Paulsen

Proceedings Volume 1675, Quantum Well and Superlattice Physics IV; (1992) https://doi.org/10.1117/12.137617
Event: Semiconductors '92, 1992, Somerset, NJ, United States

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.

Citation Download Citation

Petter Helgesen, Richard Sizmann, Stian Lovold, and Andre Paulsen "Intersubband absorption and wave function engineering in quantum-well structures", Proc. SPIE 1675, Quantum Well and Superlattice Physics IV, (3 September 1992); https://doi.org/10.1117/12.137617

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