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Acknowledgement to Reviewers of Photonics in 2017
Open AccessArticle

High Throughput AOTF Hyperspectral Imager for Randomly Polarized Light

1
School of Biomedical Engineering, McMaster University, Hamilton, ON L8S 4K1, Canada
2
Spectral Applied Research Inc. (A Division of Andor Technology), Richmond Hill, ON L4B 2N3, Canada
3
Department of Engineering Physics, McMaster University, Hamilton, ON L8S 4K1, Canada
*
Author to whom correspondence should be addressed.
Now with the Department of Biomedical Engineering, Military Technical College, Egypt
Photonics 2018, 5(1), 3; https://doi.org/10.3390/photonics5010003
Received: 25 November 2017 / Revised: 25 December 2017 / Accepted: 20 January 2018 / Published: 22 January 2018
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. View Full-Text
Keywords: hyperspectral imaging; AOTF; LCTF; optical throughput hyperspectral imaging; AOTF; LCTF; optical throughput
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MDPI and ACS Style

Abdlaty, R.; Orepoulos, J.; Sinclair, P.; Berman, R.; Fang, Q. High Throughput AOTF Hyperspectral Imager for Randomly Polarized Light. Photonics 2018, 5, 3. https://doi.org/10.3390/photonics5010003

AMA Style

Abdlaty R, Orepoulos J, Sinclair P, Berman R, Fang Q. High Throughput AOTF Hyperspectral Imager for Randomly Polarized Light. Photonics. 2018; 5(1):3. https://doi.org/10.3390/photonics5010003

Chicago/Turabian Style

Abdlaty, Ramy; Orepoulos, John; Sinclair, Peter; Berman, Richard; Fang, Qiyin. 2018. "High Throughput AOTF Hyperspectral Imager for Randomly Polarized Light" Photonics 5, no. 1: 3. https://doi.org/10.3390/photonics5010003

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