- Disorder-induced modification of the transmission of light through two-dimensional photonic crystals doi link

Auteur(s): Beggs Dm, Kaliteevski Ma, Abram Ra, Cassagne D., Albert Jean-paul

(Article) Publié: Journal Of Physics: Condensed Matter, vol. 17 p.1781-1790 (2005)

Ref HAL: hal-00437958_v1
DOI: 10.1088/0953-8984/17/12/002
WoS: 000228616700006
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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.