Measuring the wedge of flat optical windows
(2021) In Optics Communications 498.- Abstract
A novel interferometric technique to measure small wedge angle of transparent windows is proposed. The technique is based on the measurement of the shift of the interference pattern generated by two sheared copies of a laser beam after crossing the optical wedge. A simple lens is used to combine the two beams in their focal plane and measurements are taken for different shears. It is not necessary to perform a spatial filtering of the laser beam since correlations are used to determine the parameters of the experiment. A sample with a wedge slightly greater than one minute is used to illustrate the method.
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/ed4f8434-e5af-422c-9457-70901dc9168c
- author
- Arosa, Yago ; Díaz Rivas, Daniel ; López Lago, Elena and de la Fuente, Raúl
- publishing date
- 2021-11-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Cyclic interferometer, Fringe spacing, Shear, Wedge
- in
- Optics Communications
- volume
- 498
- article number
- 127257
- publisher
- Elsevier
- external identifiers
-
- scopus:85109216036
- ISSN
- 0030-4018
- DOI
- 10.1016/j.optcom.2021.127257
- language
- English
- LU publication?
- no
- additional info
- Funding Information: Xunta de Galicia, Conseller?a de Educaci?n, Universidades e FP, Grant GRC number ED431E2018/08.
- id
- ed4f8434-e5af-422c-9457-70901dc9168c
- date added to LUP
- 2021-08-16 09:19:23
- date last changed
- 2022-04-27 03:09:31
@article{ed4f8434-e5af-422c-9457-70901dc9168c, abstract = {{<p>A novel interferometric technique to measure small wedge angle of transparent windows is proposed. The technique is based on the measurement of the shift of the interference pattern generated by two sheared copies of a laser beam after crossing the optical wedge. A simple lens is used to combine the two beams in their focal plane and measurements are taken for different shears. It is not necessary to perform a spatial filtering of the laser beam since correlations are used to determine the parameters of the experiment. A sample with a wedge slightly greater than one minute is used to illustrate the method.</p>}}, author = {{Arosa, Yago and Díaz Rivas, Daniel and López Lago, Elena and de la Fuente, Raúl}}, issn = {{0030-4018}}, keywords = {{Cyclic interferometer; Fringe spacing; Shear; Wedge}}, language = {{eng}}, month = {{11}}, publisher = {{Elsevier}}, series = {{Optics Communications}}, title = {{Measuring the wedge of flat optical windows}}, url = {{http://dx.doi.org/10.1016/j.optcom.2021.127257}}, doi = {{10.1016/j.optcom.2021.127257}}, volume = {{498}}, year = {{2021}}, }