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
Combined Reduced Phase Dual-Directional Illumination Digital Holography and Speckle Displacements for Shape Measurement
Örebro University, School of Science and Technology. Experimental Mechanics, Luleå University of Technology, Luleå, Sweden.ORCID iD: 0000-0003-2960-3094
2019 (English)In: International Journal of Optics, ISSN 1687-9384, E-ISSN 1687-9392, Vol. 2019, article id 4906109Article in journal (Refereed) Published
Abstract [en]

We present a digital holographic method to increase height range measurement with a reduced phase ambiguity using a dual-directional illumination. Small changes in the angle of incident illumination introduce phase differences between the recorded complex fields. We decrease relative phase difference between the recorded complex fields 279 and 139 times by changing the angle of incident 0.5° and 1°, respectively. A two cent Euro coin edge groove is used to measure the shape. The groove depth is measured as ≈300  . Further, numerical refocusing and analysis of speckle displacements in two different planes are used to measure the depth without a use of phase unwrapping process.

Place, publisher, year, edition, pages
Hindawi Limited , 2019. Vol. 2019, article id 4906109
National Category
Engineering and Technology Atom and Molecular Physics and Optics
Identifiers
URN: urn:nbn:se:oru:diva-72613DOI: 10.1155/2019/4906109ISI: 000459030200001OAI: oai:DiVA.org:oru-72613DiVA, id: diva2:1290091
Available from: 2019-02-19 Created: 2019-02-19 Last updated: 2019-06-18Bibliographically approved

Open Access in DiVA

No full text in DiVA

Other links

Publisher's full text

Authority records BETA

Khodadad, Davood

Search in DiVA

By author/editor
Khodadad, Davood
By organisation
School of Science and Technology
In the same journal
International Journal of Optics
Engineering and TechnologyAtom and Molecular Physics and Optics

Search outside of DiVA

GoogleGoogle Scholar

doi
urn-nbn

Altmetric score

doi
urn-nbn
Total: 100 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