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- Title
Propagation of light in a quasi-two-dimensional Si/SiO<sub>2</sub> superlattice with variable strip thickness.
- Authors
Rumyantsev, V. V.; Fedorov, S. A.
- Abstract
The propagation of an electromagnetic excitation localized in a nonideal quasi-two-dimensional Si/SiO2 system that constitutes a topologically ordered set of strips with a random number of defect strips is numerically simulated within the virtual crystal approximation. The defect strips differ from the basic strips (for an ideal periodic structure) in both the composition and the thickness. The concentration dependence of the lowest photonic bandgap of the nonideal striped Si/SiO2 film is studied. It is found that the presence of foreign layers in this nonideal superlattice causes a considerable renormalization of its polariton spectrum.
- Subjects
ELECTRONIC excitation; SUPERLATTICES; ORDERED sets; RANDOM numbers; COMPUTER simulation
- Publication
Optics & Spectroscopy, 2009, Vol 106, Issue 4, p627
- ISSN
0030-400X
- Publication type
Article
- DOI
10.1134/S0030400X09040250