Disorder induced modification of reflection and transmission spectra of a two-dimensional photonic crystal with an incomplete band-gap

Dm Beggs , Ma Kaliteevski , S. Brand , Ra Abram , David Cassagne (1) , Jean-Paul Albert (1)

1 GES - Groupe d'étude des semiconducteurs

Transmission and reflection of light in disordered two-dimensional photonic crystals with an incomplete photonic band-gap have been modelled for various levels of disorder. It is found that ballistic and scattered light display different behaviours as a function of the disorder parameter. For ballistic light, the dependence of the transmission coefficient on the disorder parameter exhibits a threshold-like behaviour, whereas the transmission of scattered light increases rapidly for small disorder. Unlike for photonic crystals with a complete bandgap, the minimum of the transmission for scattered light does not coincide with the centre of the photonic band-gap, and Fabry-Perot-type oscillations can be seen within the photonic band-gap.

Mots clés: EXISTENCE; LIGHT

Domaines: Science des matériaux [cond-mat.mtrl-sci]; Optique [physics.optics]

Dm Beggs, Ma Kaliteevski, S. Brand, Ra Abram, David Cassagne, et al.. Disorder induced modification of reflection and transmission spectra of a two-dimensional photonic crystal with an incomplete band-gap. Journal of Physics: Condensed Matter, 2005, 17, pp.4049-4055. ⟨10.1088/0953-8984/17/26/005⟩. ⟨hal-00437959⟩