oru.sePublications
Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Dual-wavelength digital holographic shape measurement using speckle movements and phase gradients
Luleå University of Technology, Luleå, Sweden.ORCID iD: 0000-0003-2960-3094
Optronic, Skellefteå, Sweden.
Luleå University of Technology, Luleå, Sweden.
2013 (English)In: Optical Engineering: The Journal of SPIE, ISSN 0091-3286, E-ISSN 1560-2303, Vol. 52, no 10, article id 101912Article in journal (Refereed) Published
Abstract [en]

A new method to measure shape by analyzing the speckle movements in images generated by numerical propagation from dual-wavelength holograms is presented. The relationship of the speckle movements at different focal distances is formulated, and it is shown how this carries information about the surface position as well as the local slope of the object. It is experimentally verified that dual-wavelength holography and numerically generated speckle images can be used together with digital speckle correlation to retrieve the object shape. From a measurement on a cylindrical test object, the method is demonstrated to have a random error in the order of a few micrometers.

Place, publisher, year, edition, pages
SPIE - International Society for Optical Engineering, 2013. Vol. 52, no 10, article id 101912
Keywords [en]
digital holography, speckle movements, shape measurement, dual wavelength, phase gradients
National Category
Atom and Molecular Physics and Optics Other Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:oru:diva-72553DOI: 10.1117/1.OE.52.10.101912ISI: 000328254600017Scopus ID: 2-s2.0-84886787525OAI: oai:DiVA.org:oru-72553DiVA, id: diva2:1289892
Funder
VINNOVAAvailable from: 2019-02-19 Created: 2019-02-19 Last updated: 2019-03-12Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full textScopus

Authority records BETA

Khodadad, Davood

Search in DiVA

By author/editor
Khodadad, Davood
In the same journal
Optical Engineering: The Journal of SPIE
Atom and Molecular Physics and OpticsOther Electrical Engineering, Electronic Engineering, Information Engineering

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 53 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • harvard1
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf