Bio-inspired band-gap tunable elastic optical multilayer fibers

Adv Mater. 2013 Apr 18;25(15):2239-45. doi: 10.1002/adma.201203529. Epub 2013 Jan 27.

Abstract

The concentrically-layered photonic structure found in the tropical fruit Margaritaria nobilis serves as inspiration for photonic fibers with mechanically tunable band-gap. The fibers show the spectral filtering capabilities of a planar Bragg stack while the microscopic curvature decreases the strong directional chromaticity associated with flat multilayers. Elongation of the elastic fibers results in a shift of the reflection of over 200 nm.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Elasticity
  • Embryophyta / chemistry
  • Fruit / chemistry
  • Optical Fibers*
  • Photons