Anomalous scattering from dielectric bispheres in the specular direction

被引:10
作者
Miyazaki, HT
Miyazaki, H
Miyano, K
机构
[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan
[2] Japan Sci & Technol Corp, PRESTO, Kawaguchi, Saitama 3320012, Japan
[3] Tohoku Univ, Dept Appl Phys, Aoba Ku, Sendai, Miyagi 9808579, Japan
[4] Univ Tokyo, Adv Sci & Technol Res Ctr, Meguro Ku, Tokyo 1538904, Japan
关键词
D O I
10.1364/OL.27.001208
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Resonant scattering from dielectric bispheres in the specular direction (the so-called specular resonance), previously known only in the microwave range, has been observed at the optical wavelength. Systematic experiments with micrometer-sized dielectric bispheres assembled by micromanipulation, together with rigorous numerical calculations, reveal that this scattering is a precursor of the classical rainbow and is a general phenomenon observed in the wide range of size parameters (>5 for n = 1.59) for various refractive indices. (C) 2002 Optical Society of America.
引用
收藏
页码:1208 / 1210
页数:3
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