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.
|Original language||English (US)|
|Number of pages||8|
|State||Published - Dec 24 2007|
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics