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Infrared optical absorption in imperfect parabolic quantum wells
Abstract
The effects of possible imperfections on the infrared optical absorption and on the charge-density profile of wide parabolic quantum wells (WPQW's) are studied. We consider effects that can arise from the finite width of WPQW's, from the existence of a quartic component in the confining potential, and from the existence of a region of flat potential in the center of the well. Within the local-density approximation, we confirm that a perfect WPQW absorbs light only at the bare harmonic-oscillator frequency, and show that the effects of small imperfections of the types considered on the absorption spectrum are twofold: a shift in the location of the main peak and the appearance of new peaks nearby.
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Cites
Electronic properties of two-dimensional systems
Ando, T., Fowler, A. B., & Stern, F. (1982) · Reviews of Modern Physics · doi:10.1103/revmodphys.54.437 · Cited by 7,455
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Quantum hydrodynamic model for the nonlinear electron dynamics in thin metal films
Crouseilles, N., Hervieux, P.-A., & Manfredi, G. (2008) · Physical Review B · doi:10.1103/physrevb.78.155412 · Cited by 346
Harmonic-Potential Theorem: Implications for Approximate Many-Body Theories
Dobson, J. F. (1994) · Physical Review Letters · doi:10.1103/physrevlett.73.2244 · Cited by 321
Exchange effects in Coulomb quantum plasmas: Dispersion of waves in 2D and 3D quantum plasmas
Andreev, P. A. (2014) · Annals of Physics · doi:10.1016/j.aop.2014.07.019 · Cited by 55
Fluid descriptions of quantum plasmas
Manfredi, G., Hervieux, P.-A., & Hurst, J. (2021) · Reviews of Modern Plasma Physics · doi:10.1007/s41614-021-00056-y · Cited by 29
Brodin, G., Ekman, R., & Zamanian, J. (2019) · Physics of Plasmas · doi:10.1063/1.5104339 · Cited by 16
Metadata
- Authors
- Brey, L., Dempsey, J., Johnson, N. F., & Halperin, B. I.
- Venue
- Physical Review B
- Publisher
- American Physical Society (APS)
- Published
- 1990-07-15
- Volume
- 42
- Issue
- 2
- Pages
- 1240-1247
- ISSN
- 0163-1829 (ISSN-L)
- 1095-3795
- OpenAlex
- W1981874105
- Cited by
- 193
- References
- 1
- FWCI
- 3.54
- Type
- journal article
- Language
- en
- Open access
- closed
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- Brey, L., Dempsey, J., Johnson, N. F., & Halperin, B. I. (1990). Infrared optical absorption in imperfect parabolic quantum wells. Physical Review B. https://doi.org/10.1103/physrevb.42.1240
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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