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Modeling of intraband absorption for quantum dot-in-well structures with low computational cost

Hong, B H; Rybchenko, S I; Itskevich, I E; Haywood, S K; Tan, C H; Vines, P; Hugues, M

Authors

B H Hong

S K Haywood

C H Tan

P Vines

M Hugues



Abstract

Much effort has been committed to development of quantum-dot-based infrared photodetectors owing to their potential for normal-incidence absorption and low dark current.Quantum-dot-in-well structures offer additional advantages, such as better wavelength tunability and improved carrier collection. This system presents a challenge for modeling of electronic structure, as it requires solution for a complex system (quantum dot plus quantum well) with both discrete levels and the continuum energy spectrum. The Green's function method, mostly used for such problems, has very high computational cost. Here we use the Finite Element Method to model intraband absorption spectra of quantum-dot-in-well structures within the effective mass approximation.

Journal Article Type Article
Publication Date 2010
Journal Journal of Physics: Conference Series
Print ISSN 1742-6588
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 242
Issue 1
Article Number 012013
APA6 Citation Hong, B. H., Rybchenko, S. I., Itskevich, I. E., Haywood, S. K., Tan, C. H., Vines, P., & Hugues, M. (2010). Modeling of intraband absorption for quantum dot-in-well structures with low computational cost. Journal of Physics: Conference Series, 242(1), doi:10.1088/1742-6596/242/1/012013
DOI https://doi.org/10.1088/1742-6596/242/1/012013