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

被引：55
作者：
Liew, S. F. [1 ]
Forster, J. [2 ]
Noh, H. [1 ]
Schreck, C. F. [3 ]
Saranathan, V. [4 ]
Lu, X. [5 ]
Yang, L. [6 ]
Prum, Richard O. [4 ]
O'Hern, C. S. [2 ,3 ]
Dufresne, E. R. [2 ,3 ,7 ,8 ]
Cao, H. [1 ,3 ]
机构：
[1] Yale Univ, Dept Appl Phys, New Haven, CT 06511 USA
[2] Yale Univ, Dept Mech Engn & Mat Sci, New Haven, CT 06511 USA
[3] Yale Univ, Dept Phys, New Haven, CT 06511 USA
[4] Yale Univ, Dept Ecol & Evolutionary Biol, Peabody Museum Nat Hist, New Haven, CT 06511 USA
[5] Brookhaven Natl Lab, Dept Condensed Matter Phys & Mat Sci, Upton, NY 11973 USA
[6] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA
[7] Yale Univ, Dept Chem Engn, New Haven, CT 06511 USA
[8] Yale Univ, Dept Cell Biol, New Haven, CT 06511 USA
来源：
OPTICS EXPRESS | 2011年 / 19卷 / 09期
基金：
美国国家科学基金会;
关键词：
RANDOM CLOSE-PACKING; LIGHT-SCATTERING; PHOTONIC STRUCTURES; SPHERES; BACKSCATTERING; NANOSTRUCTURES; SUSPENSIONS; PARTICLES; CRYSTALS; HARD;
D O I：
10.1364/OE.19.008208
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
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. (C) 2011 Optical Society of America
引用
收藏
页码：8208 / 8217
页数：10
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