In this work, we introduce a spectroscopy system based on an electronic source that can radiate terahertz frequency combs to perform broadband spectroscopy of trace gases. A single-chip source provides us with a highly compact and cost-effective system in comparison with a laser-based source, and a faster response time in comparison with chemical sensors. We have performed THz gas spectroscopy using three different gases, H2S, NH3, and H2O. These measurements have been performed at 575, 736, and 754 GHz.
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M. Assefzadeh and A. Babakhani, "An 8-psec 13dBm peak EIRP digital-to-impulse radiator with an on-chip slot bow-tie antenna in silicon," 2014 IEEE MTT-S International Microwave Symposium (IMS2014), Tampa, FL, 2014, pp. 1-4.
M. Assefzadeh., "Terahertz trace gas spectroscopy based on a fully-electronic frequency-comb radiating array in silicon," 2016 Conference on Lasers and Electro-Optics (CLEO), Optical Society of America, San Jose, CA, 2016, pp. 1-2.
M. Assefzadeh and A. Babakhani. "Broadband 0.03–1.032 THz signal generation and radiation based on a fully-integrated 4× 2 impulse radiating array in 90nm SiGe BiCMOS." Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2016 41st International Conference, 2016.
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