Microfluidic sorting with blinking optical traps

被引：15

作者：

Dasgupta, R. ^{[1
]}

Verma, R. S. ^{[1
]}

Gupta, P. K. ^{[1
]}

机构：

[1] Raja Ramanna Ctr Adv Technol, Laser Biomed Applicat & Instrumentat Div, Indore, Madhya Pradesh, India

来源：

OPTICS LETTERS | 2012年 / 37卷 / 10期

关键词：

Silica;

D O I：

10.1364/OL.37.001739

中图分类号：

O43 [光学];

学科分类号：

070207 [光学];

摘要：

It is shown that by appropriately choosing the periodicity of a blinking optical trap only larger sized colloidal spheres can be selectively trapped out of a mixed population. This happens because smaller sized, more agile, spheres escape out of the trap volume during the off period of the trap beam. Therefore, by scanning an array of blinking traps over a mixed sample, bigger spheres can be forced to move with the traps and eventually could be taken to the output side. Experimental demonstration of sorting between 1 mu m and 2 mu m diameter silica spheres is presented. (C) 2012 Optical Society of America

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收藏

页码：1739 / 1741

页数：3

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