Tunneling mechanism of light transmission through metallic films -: art. no. 067403

被引:79
作者
de Abajo, FJG
Gómez-Santos, G
Blanco, LA
Borisov, AG
Shabanov, SV
机构
[1] UPV, CSIC, Unidad Fis Mat, EHU, San Sebastian 20080, Spain
[2] Donostia Int Phys Ctr, San Sebastian 20080, Spain
[3] Univ Autonoma Madrid, Fac Ciencias, Dept Fis Mat Condensada, E-28049 Madrid, Spain
[4] Univ Paris 11, Collis Atom & Mol Lab, F-91405 Orsay, France
[5] Univ Florida, Dept Math, Gainesville, FL 32611 USA
关键词
D O I
10.1103/PhysRevLett.95.067403
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
A mechanism of light transmission through metallic films is proposed, assisted by tunneling between resonating buried dielectric inclusions. This is illustrated by arrays of Si spheres embedded in Ag. Strong transmission peaks are observed near the Mie resonances of the spheres. The interaction among various planes of spheres and interference effects between these resonances and the surface plasmons of Ag lead to mixing and splitting of the resonances. Transmission is proved to be limited only by absorption. For small spheres, the effective dielectric constant of the resulting material can be tuned to values close to unity, and a method is proposed to turn the resulting materials invisible.
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页数:4
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