Characterizing and tracking single colloidal particles with video holographic microscopy

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We use digital holographic microscopy and Mie scattering theory to simultaneously characterize and track individual colloidal particles. Each holographic snapshot provides enough information to measure a colloidal sphere's radius and refractive index to within 1%, and simultaneously to measure its three-dimensional position with nanometer in-plane precision and 10 nanometer axial resolution. (c) 2007 Optical Society of America.
Publisher
OPTICAL SOC AMER
Issue Date
2007-12
Language
English
Article Type
Article
Keywords

INTERNAL-REFLECTION MICROSCOPY; GENERALIZED LORENZ-MIE; 3-DIMENSIONAL STRUCTURES; OPTICAL TWEEZERS; SCATTERING; LIGHT; MICROMANIPULATION; MICROSPHERES; PRECISION; FORCES

Citation

OPTICS EXPRESS, v.15, no.26, pp.18275 - 18282

ISSN
1094-4087
DOI
10.1364/OE.15.018275
URI
http://hdl.handle.net/10203/12809
Appears in Collection
CBE-Journal Papers(저널논문)
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