- Tytuł:
- Two-step dual-wavelength interferometry for surface relief retrieval
- Autorzy:
-
Kmet, Arkady B.
Muravsky, Leonid I.
Voronyak, Taras I.
Stasyshyn, Ihor V. - Powiązania:
- https://bibliotekanauki.pl/articles/173569.pdf
- Data publikacji:
- 2019
- Wydawca:
- Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
- Tematy:
-
dual-wavelength interferometry
two-step phase shifting interferometry
blind phase shift
surface relief retrieval
areal surface roughness
areal waviness
phase map - Opis:
- The new two-step dual-wavelength interferometry method that uses only two pairs of interferograms for surface relief retrieval is proposed. In this method, two interferograms in each pair are differed only by an arbitrary phase shift of a reference wave. The method allows using only one out-of-plane shift of a reference wave to record each second interferogram in both pairs, since arbitrary phase shifts between interferograms in each pair can be defined by calculation of the correlation coefficient between two interferograms. This method can extract separately areal surface roughness and areal waviness phase maps from a phase map of the total surface relief and reduce errors produced during the surface relief retrieving. Computer simulation and experimental verification have confirmed the reliability of the proposed method.
- Źródło:
-
Optica Applicata; 2019, 49, 2; 331-343
0078-5466
1899-7015 - Pojawia się w:
- Optica Applicata
- Dostawca treści:
- Biblioteka Nauki
Artykuł