High Throughput AOTF Hyperspectral Imager for Randomly Polarized Light
The acousto-optic tunable filter (AOTF) is one of the most used techniques for hyperspectral imaging (HSI), and is capable of fast and random wavelength access, high diffraction efficiency, and good spectral resolution. Typical AOTF-HSI works with linearly polarized light; hence, its throughput is l...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2018-01-01
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| Series: | Photonics |
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| Online Access: | http://www.mdpi.com/2304-6732/5/1/3 |
| _version_ | 1828873030971949056 |
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| author | Ramy Abdlaty John Orepoulos Peter Sinclair Richard Berman Qiyin Fang |
| author_facet | Ramy Abdlaty John Orepoulos Peter Sinclair Richard Berman Qiyin Fang |
| author_sort | Ramy Abdlaty |
| collection | DOAJ |
| description | The acousto-optic tunable filter (AOTF) is one of the most used techniques for hyperspectral imaging (HSI), and is capable of fast and random wavelength access, high diffraction efficiency, and good spectral resolution. Typical AOTF-HSI works with linearly polarized light; hence, its throughput is limited for randomly polarized applications such as fluorescence imaging. We report an AOTF-based imager design using both polarized components of the input light. The imager is designed to operate in the 450 to 800 nm region with resolutions in the range of 1.5–4 nm. The performance characterization results show that this design leads to 68% improvement in throughput for randomly polarized light. We also compared its performance against a liquid crystal tunable filter (LCTF)-based imager. |
| first_indexed | 2024-12-13T07:07:53Z |
| format | Article |
| id | doaj.art-6297e4d113534cd59b29f81ce8f50751 |
| institution | Directory Open Access Journal |
| issn | 2304-6732 |
| language | English |
| last_indexed | 2024-12-13T07:07:53Z |
| publishDate | 2018-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj.art-6297e4d113534cd59b29f81ce8f507512022-12-21T23:55:46ZengMDPI AGPhotonics2304-67322018-01-0151310.3390/photonics5010003photonics5010003High Throughput AOTF Hyperspectral Imager for Randomly Polarized LightRamy Abdlaty0John Orepoulos1Peter Sinclair2Richard Berman3Qiyin Fang4School of Biomedical Engineering, McMaster University, Hamilton, ON L8S 4K1, CanadaSpectral-Applied Research, Richmond Hill, ON L4B 2N3, CanadaSpectral-Applied Research, Richmond Hill, ON L4B 2N3, CanadaSpectral-Applied Research, Richmond Hill, ON L4B 2N3, CanadaSchool of Biomedical Engineering, McMaster University, Hamilton, ON L8S 4K1, CanadaThe acousto-optic tunable filter (AOTF) is one of the most used techniques for hyperspectral imaging (HSI), and is capable of fast and random wavelength access, high diffraction efficiency, and good spectral resolution. Typical AOTF-HSI works with linearly polarized light; hence, its throughput is limited for randomly polarized applications such as fluorescence imaging. We report an AOTF-based imager design using both polarized components of the input light. The imager is designed to operate in the 450 to 800 nm region with resolutions in the range of 1.5–4 nm. The performance characterization results show that this design leads to 68% improvement in throughput for randomly polarized light. We also compared its performance against a liquid crystal tunable filter (LCTF)-based imager.http://www.mdpi.com/2304-6732/5/1/3hyperspectral imagingAOTFLCTFoptical throughput |
| spellingShingle | Ramy Abdlaty John Orepoulos Peter Sinclair Richard Berman Qiyin Fang High Throughput AOTF Hyperspectral Imager for Randomly Polarized Light Photonics hyperspectral imaging AOTF LCTF optical throughput |
| title | High Throughput AOTF Hyperspectral Imager for Randomly Polarized Light |
| title_full | High Throughput AOTF Hyperspectral Imager for Randomly Polarized Light |
| title_fullStr | High Throughput AOTF Hyperspectral Imager for Randomly Polarized Light |
| title_full_unstemmed | High Throughput AOTF Hyperspectral Imager for Randomly Polarized Light |
| title_short | High Throughput AOTF Hyperspectral Imager for Randomly Polarized Light |
| title_sort | high throughput aotf hyperspectral imager for randomly polarized light |
| topic | hyperspectral imaging AOTF LCTF optical throughput |
| url | http://www.mdpi.com/2304-6732/5/1/3 |
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