@inproceedings{8ab2e4a5a35640bda58932a1cb66f90f,
title = "THz impulse radar for biomedical sensing: Nonlinear system behavior",
abstract = "The THz impulse radar is an {"}RF-inspired{"} sensor system that has performed remarkably well since its initial development nearly six years ago. It was developed for ex vivo skin-burn imaging, and has since shown great promise in the sensitive detection of hydration levels in soft tissues of several types, such as in vivo corneal and burn samples. An intriguing aspect of the impulse radar is its hybrid architecture which combines the high-peak-power of photoconductive switches with the high-responsivity and -bandwidth (RF and video) of Schottky-diode rectifiers. The result is a very sensitive sensor system in which the post-detection signal-to-noise ratio depends super-linearly on average signal power up to a point where the diode is {"}turned on{"} in the forward direction, and then behaves quasi-linearly beyond that point. This paper reports the first nonlinear systems analysis done on the impulse radar using MATLAB.",
keywords = "Impulse radar, Photoconductive switch, Schottky rectifier, Signal-to-noise ratio, THz radiation",
author = "Brown, \{E. R.\} and Shijun Sung and Grundfest, \{W. S.\} and Taylor, \{Z. D.\}",
year = "2014",
doi = "10.1117/12.2044061",
language = "English",
isbn = "9780819498540",
series = "Progress in Biomedical Optics and Imaging - Proceedings of SPIE",
publisher = "SPIE",
booktitle = "Optical Interactions with Tissue and Cells XXV; and Terahertz for Biomedical Applications",
address = "United States",
note = "Optical Interactions with Tissue and Cells XXV; and Terahertz for Biomedical Applications ; Conference date: 02-02-2014 Through 04-02-2014",
}