Physics: Prof. dr. J.P. Vigneron, University of Namur, Belgium: Photonic crystal reflectors in living organisms
|30 October 2008||FWN-Building 5111.0080, Nijenborgh 4, 9747 AG, Groningen|
|Speaker:||Physics: Prof. dr. J.P. Vigneron|
|Affiliation:||University of Namur, Belgium|
|Title:||Photonic crystal reflectors in living organisms|
Many living organisms have evolved photonic structures to produce colouration by light interference, as a result of a continuing natural selection that started million years ago. The physical origin of the spectral selective properties of this kind of structures - which only uses moderate refractive indexes - will be reviewed. Many examples from recent studies will be given, showing that one-, two-, and three-dimensional photonic crystals with partial band gaps are active in nature. The possible biomimetic transposition of these natural structures to actual artificial devices will also be briefly discussed.
|Last modified:||12 September 2014 11.22 a.m.|