Gain and propagation in quantum well amplifiers

Stefan Haas, Tineke Stroucken, Andreas Girndt, A. Knorr, Stephan W Koch

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We investigate systems of one, two, and multiple quantum wells separated by thick barriers in such a way that the electronic states are localized in each well. However, the different quantum wells are coupled due to the electromagnetic field. It is shown that the loss of translational invariance in the growth direction affects the interaction between the optical field and the interband polarization. Multiple reflections of the optical field between the different quantum wells occur and significantly modify the interaction dynamics between the optical field and each well. Depending on the geometry and initial conditions the propagation and amplification dynamics of a short pulse in such a system are investigated. An energy transfer between different quantum wells mediated by the laser pulse is observed. Time resolved reflected and transmitted signals for different geometries and numbers of quantum wells are calculated. The influence of Coulomb effects on the reflected and transmitted pulses is studied. It is shown that the interaction dynamics between the laser pulse and the sample shows a strong dependence on the number of quantum wells and the separation between the different wells.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsWeng W. Chow, Marek Osinski
Pages282-287
Number of pages6
Volume2693
StatePublished - 1996
Externally publishedYes
EventPhysics and Simulation of Optoelectronic Devices IV - San Jose, CA, USA
Duration: Jan 29 1996Feb 2 1996

Other

OtherPhysics and Simulation of Optoelectronic Devices IV
CitySan Jose, CA, USA
Period1/29/962/2/96

Fingerprint

Semiconductor quantum wells
Laser pulses
Geometry
Electronic states
Invariance
Energy transfer
Electromagnetic fields
Amplification
Polarization

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Haas, S., Stroucken, T., Girndt, A., Knorr, A., & Koch, S. W. (1996). Gain and propagation in quantum well amplifiers. In W. W. Chow, & M. Osinski (Eds.), Proceedings of SPIE - The International Society for Optical Engineering (Vol. 2693, pp. 282-287)

Gain and propagation in quantum well amplifiers. / Haas, Stefan; Stroucken, Tineke; Girndt, Andreas; Knorr, A.; Koch, Stephan W.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / Weng W. Chow; Marek Osinski. Vol. 2693 1996. p. 282-287.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Haas, S, Stroucken, T, Girndt, A, Knorr, A & Koch, SW 1996, Gain and propagation in quantum well amplifiers. in WW Chow & M Osinski (eds), Proceedings of SPIE - The International Society for Optical Engineering. vol. 2693, pp. 282-287, Physics and Simulation of Optoelectronic Devices IV, San Jose, CA, USA, 1/29/96.
Haas S, Stroucken T, Girndt A, Knorr A, Koch SW. Gain and propagation in quantum well amplifiers. In Chow WW, Osinski M, editors, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 2693. 1996. p. 282-287
Haas, Stefan ; Stroucken, Tineke ; Girndt, Andreas ; Knorr, A. ; Koch, Stephan W. / Gain and propagation in quantum well amplifiers. Proceedings of SPIE - The International Society for Optical Engineering. editor / Weng W. Chow ; Marek Osinski. Vol. 2693 1996. pp. 282-287
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