Resonant optical scattering in nanoparticle-doped polymer photonic crystals

被引：23

作者：

Baumberg, J. J. ^{[1
]}

Pursiainen, O. L. ^{[1
]}

Spahn, P. ^{[2
]}

机构：

[1] Univ Cambridge, Cavendish Lab, NanoPhoton Ctr, Cambridge CB3 0HE, England

[2] DKI, D-64289 Darmstadt, Germany

来源：

PHYSICAL REVIEW B | 2009年 / 80卷 / 20期

基金：

英国工程与自然科学研究理事会;

关键词：

COHERENT BACKSCATTERING; ENHANCED BACKSCATTERING; LIGHT; MEDIA; OPALS; LOCALIZATION;

D O I：

10.1103/PhysRevB.80.201103

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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.

引用

页数：4

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