Terahertz Spectroscopy and Brewster Angle Reflection Imaging of Acoustic Tiles
A Brewster angle reflection imaging apparatus is demonstrated which is capable of detecting hidden water-filled voids in a rubber tile sample. This imaging application simulates a real-world hull inspection problem for Royal Canadian Navy Victoria-class submarines. The tile samples represent a chall...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2017-01-01
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| Series: | Journal of Spectroscopy |
| Online Access: | http://dx.doi.org/10.1155/2017/2134868 |
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| _version_ | 1850176322971631616 |
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| author | Patrick Kilcullen Mark Shegelski MengXing Na David Purschke Frank Hegmann Matthew Reid |
| author_facet | Patrick Kilcullen Mark Shegelski MengXing Na David Purschke Frank Hegmann Matthew Reid |
| author_sort | Patrick Kilcullen |
| collection | DOAJ |
| description | A Brewster angle reflection imaging apparatus is demonstrated which is capable of detecting hidden water-filled voids in a rubber tile sample. This imaging application simulates a real-world hull inspection problem for Royal Canadian Navy Victoria-class submarines. The tile samples represent a challenging imaging application due to their large refractive index and absorption coefficient. With a rubber transmission window at approximately 80 GHz, terahertz (THz) sensing methods have shown promise for probing these structures in the laboratory. Operating at Brewster’s angle allows for the typically strong front surface reflection to be minimized while also conveniently making the method insensitive to air-filled voids. Using a broadband THz time-domain waveform imaging system (THz-TDS), we demonstrate satisfactory imaging and detection of water-filled voids without complicated signal processing. Optical properties of the tile samples at low THz frequencies are also reported. |
| format | Article |
| id | doaj-art-b0b58f095cb44ffcbc25422c7e120b93 |
| institution | OA Journals |
| issn | 2314-4920 2314-4939 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Spectroscopy |
| spelling | doaj-art-b0b58f095cb44ffcbc25422c7e120b932025-08-20T02:19:16ZengWileyJournal of Spectroscopy2314-49202314-49392017-01-01201710.1155/2017/21348682134868Terahertz Spectroscopy and Brewster Angle Reflection Imaging of Acoustic TilesPatrick Kilcullen0Mark Shegelski1MengXing Na2David Purschke3Frank Hegmann4Matthew Reid5Department of Physics, University of Northern British Columbia, Prince George, BC, V2N 4Z9, CanadaDepartment of Physics, University of Northern British Columbia, Prince George, BC, V2N 4Z9, CanadaDepartment of Physics, University of Alberta, Edmonton, AB, T6G 2E1, CanadaDepartment of Physics, University of Alberta, Edmonton, AB, T6G 2E1, CanadaDepartment of Physics, University of Alberta, Edmonton, AB, T6G 2E1, CanadaDepartment of Physics, University of Northern British Columbia, Prince George, BC, V2N 4Z9, CanadaA Brewster angle reflection imaging apparatus is demonstrated which is capable of detecting hidden water-filled voids in a rubber tile sample. This imaging application simulates a real-world hull inspection problem for Royal Canadian Navy Victoria-class submarines. The tile samples represent a challenging imaging application due to their large refractive index and absorption coefficient. With a rubber transmission window at approximately 80 GHz, terahertz (THz) sensing methods have shown promise for probing these structures in the laboratory. Operating at Brewster’s angle allows for the typically strong front surface reflection to be minimized while also conveniently making the method insensitive to air-filled voids. Using a broadband THz time-domain waveform imaging system (THz-TDS), we demonstrate satisfactory imaging and detection of water-filled voids without complicated signal processing. Optical properties of the tile samples at low THz frequencies are also reported.http://dx.doi.org/10.1155/2017/2134868 |
| spellingShingle | Patrick Kilcullen Mark Shegelski MengXing Na David Purschke Frank Hegmann Matthew Reid Terahertz Spectroscopy and Brewster Angle Reflection Imaging of Acoustic Tiles Journal of Spectroscopy |
| title | Terahertz Spectroscopy and Brewster Angle Reflection Imaging of Acoustic Tiles |
| title_full | Terahertz Spectroscopy and Brewster Angle Reflection Imaging of Acoustic Tiles |
| title_fullStr | Terahertz Spectroscopy and Brewster Angle Reflection Imaging of Acoustic Tiles |
| title_full_unstemmed | Terahertz Spectroscopy and Brewster Angle Reflection Imaging of Acoustic Tiles |
| title_short | Terahertz Spectroscopy and Brewster Angle Reflection Imaging of Acoustic Tiles |
| title_sort | terahertz spectroscopy and brewster angle reflection imaging of acoustic tiles |
| url | http://dx.doi.org/10.1155/2017/2134868 |
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