Optical resonances of a semiconductor superlattice in parallel magnetic and electric fields

Monica Pacheco; Zdenka Barticevic; Francisco Claro

doi:10.1117/12.24297

1 March 1991 Optical resonances of a semiconductor superlattice in parallel magnetic and electric fields

Monica Pacheco, Zdenka Barticevic, Francisco Claro

Proceedings Volume 1361, Physical Concepts of Materials for Novel Optoelectronic Device Applications I: Materials Growth and Characterization; (1991) https://doi.org/10.1117/12.24297
Event: Physical Concepts of Materials for Novel Optoelectronic Device Applications, 1990, Aachen, Germany

Abstract

We report calculations of the optical absorption coefficient for interband transitions in a superlattice subject to electric and magnetic fields parallel to the growth axis. We show that in a two-band model the absorption spectrum is a sequence of resonances with a structure that can be simple or very complex depending in a sensitive way on the ratio between the magnetic and the electric energies. We discuss the case of GaAs/A1GaAs superlattices using a six-band model in the envelope function formalism. For this system we show that the two-band parabolic model may only be used at low magnetic field.

Citation Download Citation

Monica Pacheco, Zdenka Barticevic, and Francisco Claro "Optical resonances of a semiconductor superlattice in parallel magnetic and electric fields", Proc. SPIE 1361, Physical Concepts of Materials for Novel Optoelectronic Device Applications I: Materials Growth and Characterization, (1 March 1991); https://doi.org/10.1117/12.24297

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