Optical absorption of a quantum well with an adjustable asymmetry

Date

2006-04-01

Author

Yildirim, H.
Tomak, Mehmet

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The effects of asymmetry and the electric field on the electronic subbands and the nonlinear intersubband optical absorption of GaAs quantum wells represented by a Poschl-Teller confining potential are studied. The potential itself can be made asymmetric through a correct choice of its parameter set and this adjustable asymmetry is important for optimizing the absorption. In that way optimal cases can be created. We calculate the modified wave functions and electronic subbands variationally. The linear and the nonlinear optical intersubband absorption coefficients are calculated. Numerical results for a typical GaAs quantum well are presented. The nonlinear part of the absorption coefficient is strongly modified by the asymmetry parameters while the electric field affects it at smaller values of the parameters.

Subject Keywords

Electronic, Optical and Magnetic Materials, Condensed Matter Physics, Frequency conversion, Harmonic generation, Including higher-order harmonic generation

URI

https://hdl.handle.net/11511/45701

Journal

EUROPEAN PHYSICAL JOURNAL B

DOI

https://doi.org/10.1140/epjb/e2006-00182-1

Collections

Department of Physics, Article

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Citation Formats

H. Yildirim and M. Tomak, “Optical absorption of a quantum well with an adjustable asymmetry,” EUROPEAN PHYSICAL JOURNAL B, pp. 559–564, 2006, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/45701.