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Terahertz deconvolution

Walker, G. C., Bowen, J. W., Labaune, J., Jackson, J.-B., Hadjiloucas, S. ORCID: https://orcid.org/0000-0003-2380-6114, Roberts, J., Mourou, G. and Menu, M. (2012) Terahertz deconvolution. Optics Express, 20 (25). pp. 27230-27241. ISSN 1094-4087

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To link to this item DOI: 10.1364/OE.20.027230

Abstract/Summary

The ability to retrieve information from different layers within a stratified sample using terahertz pulsed reflection imaging and spectroscopy has traditionally been resolution limited by the pulse width available. In this paper, a deconvolution algorithm is presented which circumvents this resolution limit, enabling deep sub-wavelength and sub-pulse width depth resolution. The algorithm is explained through theoretical investigation, and demonstrated by reconstructing signals reflected from boundaries in stratified materials that cannot be resolved directly from the unprocessed time-domain reflection signal. Furthermore, the deconvolution technique has been used to recreate sub-surface images from a stratified sample: imaging the reverse side of a piece of paper.

Item Type:Article
Refereed:Yes
Divisions:Life Sciences > School of Biological Sciences > Department of Bio-Engineering
ID Code:31533
Publisher:Optical Society of America
Publisher Statement:This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-20-25-27230. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

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