Il Nuovo Cimento D

, Volume 14, Issue 12, pp 1203–1215 | Cite as

Boundary problems for polariton propagation in thin layers and quantum wells

  • G. Czajkowski
  • A. Tredicucci


We show how to compute the optical functions (reflection and transmission) of a semiconductor thin slab, in the vicinity of nearly degenerate exciton states. Additional boundary conditions are not required in the coherentwave-function approach and multiple-polariton effects are included since Maxwell equations are satisfied. When the slab thickness is comparable to the exciton Bohr radius, centre of mass quantization results. When the slab thickness is smaller than the Bohr radius, we obtain, quantum well polaritons. Numerical examples appropriate to GaAs are given.

PACS 78.65

Optical properties of thin films, surfaces, and thin-layer structures (including superlattices, heterostructures, and interacalation compounds) 

PACS 71.35

Excitons and related phenomena (including electron-hole drops) 

PACS 71.36

Polaritons (including photon-photon and photon-magnon interactions) 


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Copyright information

© Società Italiana di Fisica 1992

Authors and Affiliations

  • G. Czajkowski
    • 1
  • A. Tredicucci
    • 1
  1. 1.Scuola Normale SuperiorePisaItalia

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