Off‐axis self‐reference digital holography in the visible and far‐infrared region
Recent advances in digital holography in the far‐infrared region of the spectrum have demonstrated the potential use of digital holography in homeland security as a tool to observe hostile environments in which smoke, flames, and dust impair vision. However, to make this application practical, it is...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Electronics and Telecommunications Research Institute (ETRI)
2019-01-01
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| Series: | ETRI Journal |
| Subjects: | |
| Online Access: | https://doi.org/10.4218/etrij.2018-0420 |
| _version_ | 1818967232327188480 |
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| author | Vittorio Bianco Melania Paturzo Andrea Finizio Pietro Ferraro |
| author_facet | Vittorio Bianco Melania Paturzo Andrea Finizio Pietro Ferraro |
| author_sort | Vittorio Bianco |
| collection | DOAJ |
| description | Recent advances in digital holography in the far‐infrared region of the spectrum have demonstrated the potential use of digital holography in homeland security as a tool to observe hostile environments in which smoke, flames, and dust impair vision. However, to make this application practical, it is necessary to simplify the optical setup. Here, we show an off‐axis, self‐reference scheme that spills the reference beam out from the object beam itself and avoids the need for a complex interferometric arrangement. We demonstrate that this scheme allows the reconstruction of high‐quality holograms of objects captured under visible as well as far‐infrared light exposure. This could pave the way to the industrialization of holographic systems to enable users to see through fire. Moreover, the quantitative nature of the holographic signal is preserved. Thus, the reported results demonstrate the possibility to use this setup for optical metrology. |
| first_indexed | 2024-12-20T13:45:31Z |
| format | Article |
| id | doaj.art-90bfed98765246c28cdb7bfc78ac0343 |
| institution | Directory Open Access Journal |
| issn | 1225-6463 2233-7326 |
| language | English |
| last_indexed | 2024-12-20T13:45:31Z |
| publishDate | 2019-01-01 |
| publisher | Electronics and Telecommunications Research Institute (ETRI) |
| record_format | Article |
| series | ETRI Journal |
| spelling | doaj.art-90bfed98765246c28cdb7bfc78ac03432022-12-21T19:38:42ZengElectronics and Telecommunications Research Institute (ETRI)ETRI Journal1225-64632233-73262019-01-01411849210.4218/etrij.2018-042010.4218/etrij.2018-0420Off‐axis self‐reference digital holography in the visible and far‐infrared regionVittorio BiancoMelania PaturzoAndrea FinizioPietro FerraroRecent advances in digital holography in the far‐infrared region of the spectrum have demonstrated the potential use of digital holography in homeland security as a tool to observe hostile environments in which smoke, flames, and dust impair vision. However, to make this application practical, it is necessary to simplify the optical setup. Here, we show an off‐axis, self‐reference scheme that spills the reference beam out from the object beam itself and avoids the need for a complex interferometric arrangement. We demonstrate that this scheme allows the reconstruction of high‐quality holograms of objects captured under visible as well as far‐infrared light exposure. This could pave the way to the industrialization of holographic systems to enable users to see through fire. Moreover, the quantitative nature of the holographic signal is preserved. Thus, the reported results demonstrate the possibility to use this setup for optical metrology.https://doi.org/10.4218/etrij.2018-0420digital holography3D imaginginterferometryoptical metrologyinfrared imagingflamessecurity |
| spellingShingle | Vittorio Bianco Melania Paturzo Andrea Finizio Pietro Ferraro Off‐axis self‐reference digital holography in the visible and far‐infrared region ETRI Journal digital holography 3D imaging interferometry optical metrology infrared imaging flames security |
| title | Off‐axis self‐reference digital holography in the visible and far‐infrared region |
| title_full | Off‐axis self‐reference digital holography in the visible and far‐infrared region |
| title_fullStr | Off‐axis self‐reference digital holography in the visible and far‐infrared region |
| title_full_unstemmed | Off‐axis self‐reference digital holography in the visible and far‐infrared region |
| title_short | Off‐axis self‐reference digital holography in the visible and far‐infrared region |
| title_sort | off axis self reference digital holography in the visible and far infrared region |
| topic | digital holography 3D imaging interferometry optical metrology infrared imaging flames security |
| url | https://doi.org/10.4218/etrij.2018-0420 |
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