Short-range order and near-field effects on optical scattering and structural coloration.

نویسندگان

  • S F Liew
  • J Forster
  • H Noh
  • C F Schreck
  • V Saranathan
  • X Lu
  • L Yang
  • Richard O Prum
  • C S O'Hern
  • E R Dufresne
  • H Cao
چکیده

We have investigated wavelength-dependent light scattering in biomimetic structures with short-range order. Coherent backscattering experiments are performed to measure the transport mean free path over a wide wavelength range. Overall scattering strength is reduced significantly due to short-range order and near-field effects. Our analysis explains why single scattering of light is dominant over multiple scattering in similar biological structures and is responsible for color generation.

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عنوان ژورنال:
  • Optics express

دوره 19 9  شماره 

صفحات  -

تاریخ انتشار 2011