Digital holography simulations and experiments to quantify the accuracy of 3D particle location and 2D sizing using a proposed hybrid method

Journal Article · Tue Jan 01 04:00:00 EST 2013 · Applied Optics

DOI:https://doi.org/10.1364/AO.52.003790· OSTI ID:1062862

Guildenbecher, Daniel R.; Gao, Jian; Reu, Phillip L.; Chen, Jun

The accuracy of digital in-line holography to detect particle position and size within a 3D domain is evaluated with particular focus placed on detection of nonspherical particles. Dimensionless models are proposed for simulation of holograms from single particles, and these models are used to evaluate the uncertainty of existing particle detection methods. From the lessons learned, a new hybrid method is proposed. This method features automatic determination of optimum thresholds, and simulations indicate improved accuracy compared to alternative methods. To validate this, experiments are performed using quasi-stationary, 3D particle fields with imposed translations. For the spherical particles considered in experiments, the proposed hybrid method resolves mean particle concentration and size to within 4% of the actual value, while the standard deviation of particle depth is less than two particle diameters. Initial experimental results for nonspherical particles reveal similar performance.

• Research Organization: Sandia National Laboratories
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1062862
• Report Number(s): SAND2013-0746J
• Journal Information: Applied Optics, Journal Name: Applied Optics Journal Issue: 16 Vol. 52; ISSN APOPAI; ISSN 0003-6935
• Publisher: Optical Society of America (OSA)
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
97 MATHEMATICS AND COMPUTING