Terahertz pulsed spectroscopic imaging using optimized binary masks

Y.C. Chen; L. Gan; M. Stringer; Andrew D.  Burnett; Kasia Tych; H. Chen; John E. Cunningham; E.P.J. Parrott; J.A. Zeitler; L.F. Gladden; Edmund H. Linfield; A.G. Davies

doi:10.1063/1.3271030

Terahertz pulsed spectroscopic imaging using optimized binary masks

Y.C. Chen, L. Gan, M. Stringer, Andrew D. Burnett, Kasia Tych, H. Chen, John E. Cunningham, E.P.J. Parrott, J.A. Zeitler, L.F. Gladden, Edmund H. Linfield, A.G. Davies^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › Academic › peer-review

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Abstract

We report the development of a terahertz pulsed spectroscopic imaging system based on the concept of compressive sensing. A single-point terahertz detector, together with a set of 40 optimized two-dimensional binary masks, was used to measure the terahertz waveforms transmitted through a sample. Terahertz time- and frequency-domain images of the sample comprising 20×20 pixels were subsequently reconstructed. We demonstrate that both the spatial distribution and the spectral characteristics of a sample can be obtained by this means. Compared with conventional terahertz pulsed imaging, no raster scanning of the object is required, and ten times fewer terahertz spectra need be taken. It is therefore ideal for real-time imaging applications.

Original language	English
Article number	231112
Journal	Applied Physics Letters
Volume	95
DOIs	https://doi.org/10.1063/1.3271030
Publication status	Published - Dec-2009
Externally published	Yes

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title = "Terahertz pulsed spectroscopic imaging using optimized binary masks",

abstract = "We report the development of a terahertz pulsed spectroscopic imaging system based on the concept of compressive sensing. A single-point terahertz detector, together with a set of 40 optimized two-dimensional binary masks, was used to measure the terahertz waveforms transmitted through a sample. Terahertz time- and frequency-domain images of the sample comprising 20×20 pixels were subsequently reconstructed. We demonstrate that both the spatial distribution and the spectral characteristics of a sample can be obtained by this means. Compared with conventional terahertz pulsed imaging, no raster scanning of the object is required, and ten times fewer terahertz spectra need be taken. It is therefore ideal for real-time imaging applications.",

author = "Y.C. Chen and L. Gan and M. Stringer and Burnett, {Andrew D.} and Kasia Tych and H. Chen and Cunningham, {John E.} and E.P.J. Parrott and J.A. Zeitler and L.F. Gladden and Linfield, {Edmund H.} and A.G. Davies",

year = "2009",

month = dec,

doi = "10.1063/1.3271030",

language = "English",

volume = "95",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Terahertz pulsed spectroscopic imaging using optimized binary masks

AU - Chen, Y.C.

AU - Gan, L.

AU - Stringer, M.

AU - Burnett, Andrew D.

AU - Tych, Kasia

AU - Chen, H.

AU - Cunningham, John E.

AU - Parrott, E.P.J.

AU - Zeitler, J.A.

AU - Gladden, L.F.

AU - Linfield, Edmund H.

AU - Davies, A.G.

PY - 2009/12

Y1 - 2009/12

N2 - We report the development of a terahertz pulsed spectroscopic imaging system based on the concept of compressive sensing. A single-point terahertz detector, together with a set of 40 optimized two-dimensional binary masks, was used to measure the terahertz waveforms transmitted through a sample. Terahertz time- and frequency-domain images of the sample comprising 20×20 pixels were subsequently reconstructed. We demonstrate that both the spatial distribution and the spectral characteristics of a sample can be obtained by this means. Compared with conventional terahertz pulsed imaging, no raster scanning of the object is required, and ten times fewer terahertz spectra need be taken. It is therefore ideal for real-time imaging applications.

AB - We report the development of a terahertz pulsed spectroscopic imaging system based on the concept of compressive sensing. A single-point terahertz detector, together with a set of 40 optimized two-dimensional binary masks, was used to measure the terahertz waveforms transmitted through a sample. Terahertz time- and frequency-domain images of the sample comprising 20×20 pixels were subsequently reconstructed. We demonstrate that both the spatial distribution and the spectral characteristics of a sample can be obtained by this means. Compared with conventional terahertz pulsed imaging, no raster scanning of the object is required, and ten times fewer terahertz spectra need be taken. It is therefore ideal for real-time imaging applications.

U2 - 10.1063/1.3271030

DO - 10.1063/1.3271030

M3 - Article

SN - 0003-6951

VL - 95

JO - Applied Physics Letters

JF - Applied Physics Letters

M1 - 231112

ER -

Terahertz pulsed spectroscopic imaging using optimized binary masks

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