Optical separation of heterogeneous size distributions of microparticles on silicon nitride strip waveguides

被引：8

作者：

Khan, Saara A. ^{[1
]}

Shi, Yu ^{[1
]}

Chang, Chia-Ming ^{[2
]}

Jan, Catherine ^{[1
]}

Fan, Shanhui ^{[1
]}

Ellerbee, Audrey K. ^{[1
]}

Solgaard, Olav ^{[1
]}

机构：

[1] Stanford Univ, Dept Elect Engn, Stanford, CA 94305 USA

[2] Alcatel Lucent, Bell Labs, Holmdel, NJ 07733 USA

来源：

OPTICS EXPRESS | 2015年 / 23卷 / 07期

基金：

美国国家科学基金会;

关键词：

OPTOFLUIDIC CHIP; MICROSPHERES; PARTICLES; FORCES; FIELD;

D O I：

10.1364/OE.23.008855

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate two complementary optical separation techniques of dielectric particles on the surface of silicon nitride waveguides. Glass particles ranging from 2 mu m to 10 mu m in diameter are separated at guided powers below 40 mW. The effects of optical, viscous, and frictional forces on the particles are modeled and experimentally shown to enable separation. Particle interactions are investigated and shown to decrease measured particle velocity without interfering with the overall particle separation distribution. The demonstrated separation techniques have the potential to be integrated with microfluidic structures for cell sorting. (C) 2015 Optical Society of America

引用

页码：8855 / 8866

页数：12

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