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arXiv · 0712.1738

Characterizing and tracking single colloidal particles with video holographic microscopy

Sang-Hyuk Lee·Yohai Roichman·Gi-Ra Yi·Shin-Hyun Kim·Seung-Man Yang·Alfons van Blaaderen·Peter van Oostrum·David G. Grier
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Abstract

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.

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Sang-Hyuk Lee, Yohai Roichman, Gi-Ra Yi, Shin-Hyun Kim, Seung-Man Yang, Alfons van Blaaderen, Peter van Oostrum, David G. Grier. 2007-12-11. Characterizing and tracking single colloidal particles with video holographic microscopy. https://doi.org/10.1364/oe.15.018275

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