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A novel low cost alternative to THz for security and defence applications
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Diamond, G. G., Hutchins, David A., Pallav, P. and Green, Roger (2008) A novel low cost alternative to THz for security and defence applications. In: 34th Conference on Infrared Technology and Applications, Orlando, FL, Mar 17-20, 2008. Published in: Proceedings of SPIE - International Society for Optical Engineering, Vol.6940 (Pt.1-2). S9401-S9401. ISBN 978-0-8194-7131-4. doi:10.1117/12.799676 ISSN 0277-786X.
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Abstract
A novel technique of NIR imaging is presented that gives access to most of the applications currently published as being solely suitable for Terahertz (THz) waves. The technique uses NIR beams wavelengths found in ordinary domestic remote controls (circa 850 nm) and various signal recovery techniques commonly found in astronomy. This alternative technique can be realised by very simple and inexpensive electronics and is inherently far more portable and easy to use and no special sources are required. Transmission imaging results from this technique are presented from several industrial examples and various security applications and are compared and contrasted directly with their THz-derived counterparts. It would appear possible to very cheaply and simply emulate the performance of commercial terahertz systems at a fraction of the cost and with greatly reduced processing times Another advantage is that apart from imaging, this technique affords the means to provide simultaneous in-situ chemical-bond analysis for stand-off detection of certain chemical signatures - for example, those found in drugs and explosives (both molecular and oxidiser based). Also, unlike THz, this technique can penetrate bulk water and high humidity atmospheres and be used in transmission mode on biological and medical samples. Several results are presented of non-ionising X-ray type images that even differentiate between separate types of soft tissue.
| Item Type: | Conference Item (UNSPECIFIED) | ||||
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| Subjects: | T Technology > T Technology (General) T Technology > TP Chemical technology |
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| Divisions: | Faculty of Science, Engineering and Medicine > Engineering > Engineering | ||||
| Library of Congress Subject Headings (LCSH): | Terahertz technology, Near infrared spectroscopy, Explosives, Chemical detectors, Security systems -- Technological innovations | ||||
| Journal or Publication Title: | Proceedings of SPIE - International Society for Optical Engineering | ||||
| Publisher: | S P I E - International Society for Optical Engineering | ||||
| ISBN: | 978-0-8194-7131-4 | ||||
| ISSN: | 0277-786X | ||||
| Editor: | Andresen, BF and Fulop, GF and Norton, PR | ||||
| Official Date: | 2008 | ||||
| Dates: |
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| Volume: | Vol.6940 | ||||
| Number: | Pt.1-2 | ||||
| Number of Pages: | 8 | ||||
| Page Range: | S9401-S9401 | ||||
| DOI: | 10.1117/12.799676 | ||||
| Status: | Not Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Title of Event: | 34th Conference on Infrared Technology and Applications | ||||
| Type of Event: | Conference | ||||
| Location of Event: | Orlando, FL | ||||
| Date(s) of Event: | Mar 17-20, 2008 |
Data sourced from Thomson Reuters' Web of Knowledge
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