Spatially inhomogeneous optical gain in semiconductor photonic-crystal structures

M. Reichelt, B. Pasenow, T. Meier, T. Stroucken, Stephan W Koch

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The optical and electronic properties of semiconductor heterostructures in the vicinity of photonic crystals are discussed. The theoretical approach provides a self-consistent solution of the dynamics of the electromagnetic field and the material excitations. Due to the influence of the structured dielectric environment on the Coulomb interaction, the exciton resonances and the quasiequilibrium carrier densities in the spatially homogeneous semiconductor become space dependent. It is demonstrated that these inhomogeneities lead to distinct modifications of the optical absorption and gain spectra. As an application, numerically calculated density-dependent optical spectra are analyzed for an array of semiconductor quantum wires which are close to a two-dimensional photonic crystal. The spatial inhomogeneities result in novel excitonic absorption features and modification of the optical gain in these structures.

Original languageEnglish (US)
Article number035346
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume71
Issue number3
DOIs
StatePublished - Jan 2005
Externally publishedYes

Fingerprint

Optical gain
Photonic crystals
Crystal structure
photonics
Semiconductor materials
Semiconductor quantum wires
crystal structure
optical spectrum
inhomogeneity
Coulomb interactions
Excitons
Electronic properties
Electromagnetic fields
Light absorption
Carrier concentration
Heterojunctions
Optical properties
quantum wires
crystals
electromagnetic fields

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Spatially inhomogeneous optical gain in semiconductor photonic-crystal structures. / Reichelt, M.; Pasenow, B.; Meier, T.; Stroucken, T.; Koch, Stephan W.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 71, No. 3, 035346, 01.2005.

Research output: Contribution to journalArticle

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