Resonant optical scattering in nanoparticle-doped polymer photonic crystals

Journal Article · Sun Nov 15 00:00:00 EST 2009 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.80.201103· OSTI ID:21287111

Baumberg, J J; Pursiainen, O L ^[1]; Spahn, P ^[2]

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1. NanoPhotonics Centre, Cavendish Laboratory, University of Cambridge, Cambridge CB3 0HE (United Kingdom)
2. Deutsches Kunststoff-Institut (DKI), Schlossgartenstrasse 6, D-64289 Darmstadt (Germany)

A broadband hyperspectral technique is used to measure the coherent optical backscatter across a wide spectral bandwidth, showing the resonant suppression of the photon transport mean free path around the photonic bandgap of a shear-assembled polymer photonic crystal. By doping with carbon nanoscale scatterers that reside at specific points within the photonic crystal lattice, the ratio between photon mean free path and optical penetration is tuned from 10 to 1, enhancing forward scatter at the expense of back-scatter. The back-scattering strength of different polarisations is not explained by any current theory.

• OSTI ID: 21287111
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 80, Issue 20; Other Information: DOI: 10.1103/PhysRevB.80.201103; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
BACKSCATTERING
CARBON
CRYSTAL LATTICES
CRYSTALS
DOPED MATERIALS
LIGHT SCATTERING
MEAN FREE PATH
NANOSTRUCTURES
PHOTON TRANSPORT
PHOTONS
POLARIZATION
POLYMERS
RESONANCE
RESONANCE SCATTERING