Bio-inspired band-gap tunable elastic optical multilayer fibers.
Date
2013-01-27Date issued
2013-01-27
Journal
Advanced Materials
Type
Article
Language
en
Publisher
Wiley
Rights
This is the final version of the article. Available from Wiley via the DOI in this record.
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.
Funders/Sponsor
Financial support from
the US Air Force Offi ce of Scientifi c Research Multidisciplinary University
Research Initiative under award numbers FA9550-09-1-0669-DOD35CAP,
FA9550-10-1-0020 and the UK Engineering and Physical Sciences
Research Council EP/G060649/1 is gratefully acknowledged. M.Ko.
acknowledges the fi nancial support from the Alexander von Humboldt
Foundation in form of a Feodor Lynen postdoctoral research fellowship.
This work was performed in part at the Center for Nanoscale Systems
(CNS), a member of the National Nanotechnology Infrastructure Network
(NNIN), which is supported by the National Science Foundation under
NSF award no. ECS-0335765. CNS is part of Harvard University.
Citation
Advanced Materials, 2013, Vol. 25, Issue 15, pp. 2239 - 2245
ISSN
0935-9648
Collections
Place of publication
Germany