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Durham University

Department of Physics

Staff profile

Publication details for Dr Stuart Brand

Beggs, D M, Kaliteevski, M A, Brand, S, Abram, R A, Cassagne, D & Albert, J P (2005). Disorder induced modification of reflection and transmission spectra of a two-dimensional photonic crystal with an incomplete band-gap. Journal of Physics: Condensed Matter 17(26): 4049-4055.

Author(s) from Durham


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 band-gap, 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.