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Single Shot Dual-Wavelength Digital Holography: Calibration Based on Speckle Displacements
Department of Engineering Sciences and Mathematics, Luleå University of Technology, Luleå, Sweden.ORCID iD: 0000-0003-2960-3094
Department of Engineering Sciences and Mathematics, Luleå University of Technology, Luleå, Sweden.
Optronic Partner dp AB, Skellefteå, Sweden.
Department of Engineering Sciences and Mathematics, Luleå University of Technology, Luleå, Sweden.
2014 (English)In: International Journal of Optomechatronics, ISSN 1559-9612, Vol. 8, no 4, p. 326-339Article in journal (Refereed) Published
Abstract [en]

We present a calibration method which allows single shot dual wavelength online shape measurement in a disturbed environment. Effects of uncontrolled carrier frequency filtering are discussed as well. We demonstrate that phase maps and speckle displacements can be recovered free of chromatic aberrations. To our knowledge, this is the first time that a single shot dual wavelength calibration is reported by defining a criteria to make the spatial filtering automatic avoiding the problems of manual methods. The procedure is shown to give shape accuracy of 35 µm with negligible systematic errors using a synthetic wavelength of 1.1 mm.

Place, publisher, year, edition, pages
Taylor & Francis, 2014. Vol. 8, no 4, p. 326-339
National Category
Engineering and Technology Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:oru:diva-72557DOI: 10.1080/15599612.2014.942932ISI: 000343656700010PubMedID: 26192658Scopus ID: 2-s2.0-84908215753OAI: oai:DiVA.org:oru-72557DiVA, id: diva2:1289898
Funder
VINNOVA
Note

Funding Agency:

HOLOPRO project

Available from: 2019-02-19 Created: 2019-02-19 Last updated: 2019-03-05Bibliographically approved

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Khodadad, Davood

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  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
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Output format
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