Open AccessMeasurement of the light scattering of single micrometer-sized particles captured with a microfluidic trap
Author(s) -
Jie Dai,
Wei Li,
Baoyu Gong,
Huimin Wang,
Min Xia,
Kecheng Yang
Publication year - 2015
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.030204
Subject(s) - scattering , light scattering , optics , particle (ecology) , microfluidics , materials science , micrometer , mie scattering , forward scatter , optoelectronics , nanotechnology , physics , oceanography , geology
Light scattering detection of a single particle is significant to both theoretical developments and application progresses of particle scattering. In this work, a new method employing the polydimethylsiloxane microfluidic catcher with self-regulation was developed to detect the light scattering of an individual micro particle (20.42, 23.75, and 31.10 μm) in a wide angular range. This system can rapidly (<2 min) immobilize single particles without aggregations and continuously analyze its light scattering ranging from 2° to 162°. The high success ratio of the capture, good agreement with the anticipation, and moderate time and cost make this method a promising candidate in single-particle-scattering applications.