Anisotropic optical properties of silver nanoparticle arrays on rippled dielectric surfaces produced by low-energy ion erosion

被引:67
作者
Camelio, S. [1 ]
Babonneau, D. [1 ]
Lantiat, D. [1 ]
Simonot, L. [1 ]
Pailloux, F. [1 ]
机构
[1] Univ Poitiers, Phys Mat Lab, CNRS, SP2MI,UMR 6630, F-86962 Futuroscope, France
关键词
PLASMON RESONANCE SPECTROSCOPY; ROUGHENING INSTABILITY; FILMS; NANOSTRUCTURES; TEMPLATES; ABSORPTION; SCATTERING; GROWTH;
D O I
10.1103/PhysRevB.80.155434
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Nanoripple patterns with long-range order have been fabricated on amorphous dielectric films by Xe+ ion etching. They are used as templates to elaborate organized arrays of aligned Ag nanoparticles by grazing incidence ion-beam sputtering. The particles present an ellipsoidal shape with a major axis parallel to the ripples. Optical calculations show that both the spatial organization and shape anisotropies contribute to a strong dependence of the surface-plasmon resonance of the nanocomposite films on the orientation of the electric field.
引用
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页数:10
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