Surface profilometry by employing synthetic partially spatially coherent holograms

Juan Martinez-Carranza , Marta Mikuła , Julianna Winnik , Tomasz Kozacki

Abstract

The aim of this work is to develop a holographic method that provides the shape reconstruction with an extended measurement range and preserved high accuracy. The method requires recording of series of fully-coherent holograms generated with varying tilt of plane wave illumination. The captured holograms are numerically processed to obtain the corresponding complex fields. The complex fields are used to produce a new set of holograms, which are used for calculating the longitudinal coherence function. This function allows observing fringes of high contrast at specific heights similar to white light interferometry, and thus, shape reconstruction of the three-dimensional object is carried out. The conclusions of this work are supported with results of numerical simulations.
Author Juan Martinez-Carranza (FM / IMPh)
Juan Martinez-Carranza,,
- The Institute of Micromechanics and Photonics
, Marta Mikuła (FM / IMPh)
Marta Mikuła,,
- The Institute of Micromechanics and Photonics
, Julianna Winnik (FM / IMPh)
Julianna Winnik,,
- The Institute of Micromechanics and Photonics
, Tomasz Kozacki (FM / IMPh)
Tomasz Kozacki,,
- The Institute of Micromechanics and Photonics
Pages1088704-1 - 1088704-7
Publication size in sheets0.3
Article number1088704
Book Popescu Gabriel, Park Young-Keun (eds.): Proceedings of SPIE. Quantitative Phase Imaging V, Proceedings of SPIE: The International Society for Optical Engineering, vol. 10887, 2019, SPIE – The International Society for Optics and Photonics
Keywords in Englishsurface profilometry, reflective object, longitudinal coherent function, synthetic holograms, spatially partially coherent holograms, holographic contouring
DOIDOI:10.1117/12.2509369
URL https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10887/1088704/Surface-profilometry-by-employing-synthetic-partially-spatially-coherent-holograms/10.1117/12.2509369.full?SSO=1
Languageen angielski
Score (nominal)15
ScoreMinisterial score = 15.0, 27-05-2019, ChapterFromConference
Citation count*
Cite
Share Share

Get link to the record


* presented citation count is obtained through Internet information analysis and it is close to the number calculated by the Publish or Perish system.
Back