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Spatial terahertz-light modulators for single-pixel cameras
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Ivanov Stantchev, Rayko and Pickwell-MacPherson, Emma (2022) Spatial terahertz-light modulators for single-pixel cameras. In: Borwen, You and Lu, Ja-Yu, (eds.) Terahertz Technology. IntechOpen. ISBN 9781839626128
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WRAP-spatial-terahertz-light-modulators-single-pixel-cameras-Pickwell-MacPherson-2022.pdf - Published Version - Requires a PDF viewer. Available under License Creative Commons Attribution. Download (2124Kb) | Preview |
Official URL: http://dx.doi.org/10.5772/intechopen.96691
Abstract
Terahertz imaging looks set to become an integral part of future applications from semiconductor quality control to medical diagnosis. This will only become a reality when the technology is sufficiently cheap and capabilities adequate to compete with others. Single-pixel cameras use a spatial light modulator and a detector with no spatial-resolution in their imaging process. The spatial-modulator is key as it imparts a series of encoding masks on the beam and the detector measures the dot product of each mask and the object, thereby allowing computers to recover an image via post-processing. They are inherently slower than parallel-pixel imaging arrays although they are more robust and cheaper, hence are highly applicable to the terahertz regime. This chapter dedicates itself to terahertz single-pixel cameras; their current implementations, future directions and how they compare to other terahertz imaging techniques. We start by outlining the competing imaging techniques, then we discuss the theory behind single-pixel imaging; the main section shows the methods of spatially modulating a terahertz beam; and finally there is a discussion about the future limits of such cameras and the concluding remarks express the authors’ vision for the future of single-pixel THz cameras.
Item Type: | Book Item | ||||||||||||||||||
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Subjects: | Q Science > QC Physics T Technology > TK Electrical engineering. Electronics Nuclear engineering T Technology > TR Photography |
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||||||||||||
Library of Congress Subject Headings (LCSH): | Terahertz technology, Light modulators, Compressed sensing (Telecommunication) , Signal processing, Hadamard transform spectroscopy, Digital cameras | ||||||||||||||||||
Journal or Publication Title: | Terahertz Technology | ||||||||||||||||||
Publisher: | IntechOpen | ||||||||||||||||||
ISBN: | 9781839626128 | ||||||||||||||||||
Book Title: | Terahertz Technology | ||||||||||||||||||
Editor: | Borwen, You and Lu, Ja-Yu | ||||||||||||||||||
Official Date: | 17 August 2022 | ||||||||||||||||||
Dates: |
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DOI: | 10.5772/intechopen.96691 | ||||||||||||||||||
Status: | Peer Reviewed | ||||||||||||||||||
Publication Status: | Published | ||||||||||||||||||
Access rights to Published version: | Open Access (Creative Commons) | ||||||||||||||||||
Date of first compliant deposit: | 16 September 2022 | ||||||||||||||||||
Date of first compliant Open Access: | 16 September 2022 | ||||||||||||||||||
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