Three-dimensional optical trapping of partially silvered silica microparticles

被引：17

作者：

Jordan, P ^{[1
]}

Cooper, J

McNay, G

Docherty, FT

Smith, WE

Sinclair, G

Padgett, MJ

机构：

[1] Univ Glasgow, Dept Elect & Elect Engn, Glasgow G12 8LT, Lanark, Scotland

[2] Univ Strathclyde, Dept Pure & Appl Chem, Glasgow G1 1XL, Lanark, Scotland

[3] Univ Glasgow, Dept Phys & Astron, Glasgow G12 8QQ, Lanark, Scotland

来源：

OPTICS LETTERS | 2004年 / 29卷 / 21期

关键词：

D O I：

10.1364/OL.29.002488

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate three-dimensional trapping of micrometer-diameter silica particles, partially coated with silver, within conventional optical tweezers. Although metallic particles are usually repelled from the beam focus by the scattering force, we show that transparent spheres partially coated with silver can be trapped with efficiencies comparable with dielectric particles. The trapping characteristics of these particles are examined as a function of metallic coverage, and the application of these particles to surface-enhanced resonance Raman scattering is investigated. (C) 2004 Optical Society of America.

引用

页码：2488 / 2490

页数：3

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