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1997 | 92 | 5 | 867-869
Article title

Dielectric Function Theory Calculations of Polaritons in GaN

Content
Title variants
Languages of publication
EN
Abstracts
EN
Properties of polaritons (free excitons coupled with photons of similar energy) in gallium nitride are investigated by performing calculations based on dielectric function theory including all three excitons A, B and C (characteristic for the wurtzite structure). Moreover the excited states of excitons have been taken into account by adding Elliott's components to dielectric function. Energies, polarizabilities and damping constants of excitons are determined. It is shown that due to inter-exciton interactions the B and C excitons are strongly damped. It is estimated that the characteristic time of B to A relaxation is t_{BA}=1 ps. The exciton C lifetime is estimated τ_{C}=0.2 ps.
Keywords
EN
Publisher

Year
Volume
92
Issue
5
Pages
867-869
Physical description
Dates
published
1997-11
Contributors
author
  • Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warszawa, Poland
  • Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warszawa, Poland
  • Institute of Experimental Physics, Warsaw University, Hoża 69, 00-681 Warszawa, Poland
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv92z502kz
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