Real-time optical imaging and tracking of micron-sized particles
نویسندگان
چکیده
We report real-time imaging and dynamics monitoring of micrometer predefined and random sized particles by time–space-wavelength mapping technology using a single-detector. Experimentally, we demonstrate real-time line imaging of a 5 lm polystyrene microsphere, glass powder particles and patterns such as fingerprints with up to 5 lm resolution at 1 line/50 ns capture rate. By using the same setup, realtime displacement tracking of micrometer-size glass particles with 50 ns temporal resolution and up to 5 lm spatial resolution is achieved. We also show that existing correlation spectroscopy algorithms can be adopted to extract dynamic information in a complex environment. 2009 Elsevier B.V. All rights reserved.
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