Cargando…
A webcam in Bayer-mode as a light beam profiler for the near infra-red
Beam profiles are commonly measured with complementary metal oxide semiconductors (CMOS) or charge coupled devices (CCD). The devices are fast and reliable but expensive. By making use of the fact that the Bayer-filter in commercial webcams is transparent in the near infra-red (>800 nm) and their...
Autores principales: | , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Applied Science Publishers
2013
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3584619/ https://www.ncbi.nlm.nih.gov/pubmed/23645943 http://dx.doi.org/10.1016/j.optlaseng.2012.12.010 |
_version_ | 1782261048375508992 |
---|---|
author | Langer, Gregor Hochreiner, Armin Burgholzer, Peter Berer, Thomas |
author_facet | Langer, Gregor Hochreiner, Armin Burgholzer, Peter Berer, Thomas |
author_sort | Langer, Gregor |
collection | PubMed |
description | Beam profiles are commonly measured with complementary metal oxide semiconductors (CMOS) or charge coupled devices (CCD). The devices are fast and reliable but expensive. By making use of the fact that the Bayer-filter in commercial webcams is transparent in the near infra-red (>800 nm) and their CCD chips are sensitive up to about 1100 nm, we demonstrate a cheap and simple way to measure laser beam profiles with a resolution down to around ±1 μm, which is close to the resolution of the knife-edge technique. |
format | Online Article Text |
id | pubmed-3584619 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2013 |
publisher | Applied Science Publishers |
record_format | MEDLINE/PubMed |
spelling | pubmed-35846192013-05-01 A webcam in Bayer-mode as a light beam profiler for the near infra-red Langer, Gregor Hochreiner, Armin Burgholzer, Peter Berer, Thomas Opt Lasers Eng Article Beam profiles are commonly measured with complementary metal oxide semiconductors (CMOS) or charge coupled devices (CCD). The devices are fast and reliable but expensive. By making use of the fact that the Bayer-filter in commercial webcams is transparent in the near infra-red (>800 nm) and their CCD chips are sensitive up to about 1100 nm, we demonstrate a cheap and simple way to measure laser beam profiles with a resolution down to around ±1 μm, which is close to the resolution of the knife-edge technique. Applied Science Publishers 2013-05 /pmc/articles/PMC3584619/ /pubmed/23645943 http://dx.doi.org/10.1016/j.optlaseng.2012.12.010 Text en © 2013 Elsevier Ltd. https://creativecommons.org/licenses/by-nc-nd/3.0/ Open Access under CC BY-NC-ND 3.0 (https://creativecommons.org/licenses/by-nc-nd/3.0/) license |
spellingShingle | Article Langer, Gregor Hochreiner, Armin Burgholzer, Peter Berer, Thomas A webcam in Bayer-mode as a light beam profiler for the near infra-red |
title | A webcam in Bayer-mode as a light beam profiler for the near infra-red |
title_full | A webcam in Bayer-mode as a light beam profiler for the near infra-red |
title_fullStr | A webcam in Bayer-mode as a light beam profiler for the near infra-red |
title_full_unstemmed | A webcam in Bayer-mode as a light beam profiler for the near infra-red |
title_short | A webcam in Bayer-mode as a light beam profiler for the near infra-red |
title_sort | webcam in bayer-mode as a light beam profiler for the near infra-red |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3584619/ https://www.ncbi.nlm.nih.gov/pubmed/23645943 http://dx.doi.org/10.1016/j.optlaseng.2012.12.010 |
work_keys_str_mv | AT langergregor awebcaminbayermodeasalightbeamprofilerforthenearinfrared AT hochreinerarmin awebcaminbayermodeasalightbeamprofilerforthenearinfrared AT burgholzerpeter awebcaminbayermodeasalightbeamprofilerforthenearinfrared AT bererthomas awebcaminbayermodeasalightbeamprofilerforthenearinfrared AT langergregor webcaminbayermodeasalightbeamprofilerforthenearinfrared AT hochreinerarmin webcaminbayermodeasalightbeamprofilerforthenearinfrared AT burgholzerpeter webcaminbayermodeasalightbeamprofilerforthenearinfrared AT bererthomas webcaminbayermodeasalightbeamprofilerforthenearinfrared |