Compressed sensing with near-field THz radiation

Stantchev, R. I., Phillips, D. B., Hobson, P., Hornett, S. M., Padgett, M. and Hendry, E. (2017) Compressed sensing with near-field THz radiation. Optica, 4(8), pp. 989-992. (doi: 10.1364/OPTICA.4.000989)

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We demonstrate a form of near-field terahertz (THz) imaging that is compatible with compressed sensing algorithms. By spatially photomodulating THz pulses using a set of shaped binary optical patterns and employing a 6-μm-thick silicon wafer, we are able to reconstruct THz images of an object placed on the exit interface of the wafer. A single-element detector is used to measure the electric field amplitude of transmitted THz radiation for each projected pattern, with the ultra-thin wafer allowing us to access the THz evanescent near fields to achieve a spatial resolution of ∼9  μm∼9  μm (

Item Type:Articles
Glasgow Author(s) Enlighten ID:Padgett, Professor Miles and Phillips, Dr David
Authors: Stantchev, R. I., Phillips, D. B., Hobson, P., Hornett, S. M., Padgett, M., and Hendry, E.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Optica
Publisher:The Optical Society
ISSN (Online):2334-2536
Published Online:17 August 2017
Copyright Holders:Copyright © 2017 The Authors
First Published:First published in Optica 4(8):989-992
Publisher Policy:Reproduced under a Creative Commons License

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
667233UK Quantum Technology Hub in Enhanced Quantum ImagingMiles PadgettEngineering and Physical Sciences Research Council (EPSRC)EP/M005488/1S&E P&A - PHYSICS & ASTRONOMY