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

Description

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.

Links & Downloads

1. 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.
2. 10.1109/IRMMW-THz.2016.7758809
3. http://hdl.handle.net/10150/622785
4. http://arizona.openrepository.com/arizona/handle/10150/622785
5. 2016 41ST INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)
6. 978-1-4673-8485-8

Tags

Antenna measurements

Time-domain analysis

Antenna arrays

Signal to noise ratio

Substrates

Principal component analysis

Correlation coefficient

Additional Fields

Identifer	oai:union.ndltd.org:arizona.edu/oai:arizona.openrepository.com:10150/622785
Date	25 September 2016
Creators	Tuo, Mingguang, Liang, Min, Zhang, Jitao, Xin, Hao
Contributors	Department of Electrical and Computer Engineering, University of Arizona, Department of Physics, University of Arizona
Publisher	IEEE
Source Sets	University of Arizona
Language	English
Detected Language	English
Type	Proceedings
Rights	Copyright © 2016, IEEE