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Luminescence and absorption in short period superlattices

  • M. F. Pereira
Article
Part of the following topical collections:
  1. Focus on Optics and Bio-photonics, Photonica 2017

Abstract

This paper applies analytical approximations for the luminescence of short period semiconductor superlattices and analyses the low density regime, demonstrating that the theory clearly connects with low density absorption with ratios of oscillator strengths of bound and continuum states as expected from the Elliott formula. A numerical study illustrates in detail the bleaching of higher order bound state. The analytical expressions have potential for systematic studies of controlled excitonic pathways characterized by THz responses.

Keywords

Semiconductors superlattices Excitons Many body effects Absorption Luminescence Terahertz TERA-MIR 

Notes

Acknowledgements

The author acknowledges support from the Programme “IMPA Verão 2018” of the Instituto de Matematica Pura e Aplicada (IMPA) in Rio de Janeiro, Brazil.

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Condensed Matter PhysicsInstitute of Physics CASPrague 8Czech Republic

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