Optical forces near subwavelength apertures in metal discs

被引：10

作者：

Blanco, L. A. ^{[1
]}

Nieto-Vesperinas, M. ^{[1
]}

机构：

[1] CSIC, Inst Ciencia Mat, E-28049 Madrid, Spain

来源：

JOURNAL OF OPTICS A-PURE AND APPLIED OPTICS | 2007年 / 9卷 / 08期

关键词：

optical force; aperture; transmission; near-field;

D O I：

10.1088/1464-4258/9/8/S17

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the transmitted intensity and induced photonic forces on interaction of light with a metallic disc containing a circular aperture. A procedure is used to calculate light transmission through the aperture, discussing the role of its morphological resonances. The resulting optical forces on metallic spheres placed in front of the aperture in the transmission side are analysed, observing that they yield a possible means of trapping, with particle size, position and composition discrimination, as a consequence of the force different signs and magnitudes as the wavelength varies.

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收藏

页码：S235 / S238

页数：4

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