Time-Domain THz Near-Field Imaging Incorporating Hadamard Multiplexing Method

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Author
Tuo, Mingguang
Liang, Min
Zhang, Jitao
Xin, Hao
Affiliation
Department of Electrical and Computer Engineering, University of Arizona
Department of Physics, University of Arizona
Issue Date
2016-09-25
Keywords
Antenna measurements
Time-domain analysis
Antenna arrays
Signal to noise ratio
Substrates
Principal component analysis
Correlation coefficient

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Publisher
IEEE
Citation
M. Tuo, M. Liang, J. Zhang and H. Xin, "Time-domain THz near-field imaging incorporating Hadamard multiplexing method," 2016 41st International Conference on Infrared, Millimeter, and Terahertz waves (IRMMW-THz), Copenhagen, 2016, pp. 1-1.
Journal
2016 41ST INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)
Rights
Copyright © 2016, IEEE.
Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
Abstract
Photoconductive antenna (PCA) array based THz near-field imager incorporating Hadamard multiplexing method is developed in this work. By using a 2 × 2 dipole antenna array as the THz transmitter, the system signal-to-noise ratio (SNR) is demonstrated to be improved by a factor of 2 as the theory predicts. Additionally, a 2-D scanning of a metallic structure on a THz-transparent substrate (with a total scanning area of 1 × 1 mm2) is experimentally implemented. Correlation coefficient estimation is made afterwards to quantify the reconstructed image quality.
eISBN
978-1-4673-8485-8
DOI
10.1109/IRMMW-THz.2016.7758809
Version
Final accepted manuscript
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