Disorder-induced modification of the transmission of light through two-dimensional photonic crystals
| Autor: | J.P. Albert, Ma Kaliteevski, Dm Beggs, David Cassagne, Ra Abram |
|---|---|
| Rok vydání: | 2005 |
| Předmět: |
Electromagnetic field
Physics Quantum optics Condensed matter physics business.industry Band gap Condensed Matter Physics Laser Condensed Matter::Disordered Systems and Neural Networks law.invention law Density of states Reflection (physics) General Materials Science Photonics business Photonic crystal |
| Zdroj: | Journal of Physics: Condensed Matter. 17:1781-1790 |
| ISSN: | 1361-648X 0953-8984 |
| Popis: | Disordered two-dimensional photonic crystals with a complete photonic band-gap have been investigated. Transmission and reflection spectra have been modelled for both ballistic and scattered light. The density of states and electromagnetic field profiles of disorder-induced localized states have also been calculated, for various levels of disorder. It is found that there is a threshold-like behaviour in the amount of disorder. Below the threshold, it is seen that there is a vanishing probability of disorder-induced localized states being introduced into the centre of the photonic band-gap, but that edge-states narrow the band-gap. Above the threshold, there is a non-zero probability of disorder-induced localized states throughout the photonic band-gap, and the modification of the transmission and reflection spectra due to disorder rapidly increases with increasing disorder. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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