Accuracy Of Measurement In Coherent Imaging Of Particulates In A Three-Dimensional Sample

B. J . Thompson; P. H. Malyak

doi:10.1117/12.978031

11 November 1985 Accuracy Of Measurement In Coherent Imaging Of Particulates In A Three-Dimensional Sample

B. J . Thompson, P. H. Malyak

Proceedings Volume 0573, Particle Sizing and Spray Analysis; (1985) https://doi.org/10.1117/12.978031
Event: 29th Annual Technical Symposium, 1985, San Diego, United States

Abstract

An out-of-focus coherent image of a transilluminated particle in a transparent field is actually an in-line hologram of that particle. In the Fresnel field of the particle's cross-section, direct measurement of the particle diameter can be achieved with considerable effective defocus -- much greater than the depth of focus with an incoherent imaging system.

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B. J . Thompson and P. H. Malyak "Accuracy Of Measurement In Coherent Imaging Of Particulates In A Three-Dimensional Sample", Proc. SPIE 0573, Particle Sizing and Spray Analysis, (11 November 1985); https://doi.org/10.1117/12.978031

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