Low-cost fiber-based broadband terahertz source

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The field of time-resolved terahertz (THz) spectroscopy has grown very rapidly over the last few years. This non-invasive optical technique, based on the generation of optical radiation in the mid- and far-infrared region, can reveal valuable information about the nature of various materials and compounds. This information cannot be perceived by the naked eye, nor by the most sophisticated cameras or even x-ray scanners. Since THz spans an ideal energy range to interact with various elementary excitations including phonons, electrons and molecular vibrations, its adaptation to characterization technologies has an enormous potential of application in many scientific and industrial sectors as diverse as medical diagnostics, environmental science, semiconductors devices and security. For all these applications, the use of a broad THz source for spectroscopy, which extends spectrally beyond the typical limit of 4 THz, provides access to key signature resonances resulting in enhanced identification capabilities for many compounds. The high costs and bulkiness of these systems are the main factors currently limiting the market for broadband time-resolved THz spectrometer. The goal of this collaboration between OZ Optics and the research group of Dr. Ménard at uOttawa is to work on a more affordable, compact and broadband THz source based on low-cost lasers and proven optical fiber technology. Combining their expertise in this proposal will allow dynamic research and enhanced potential for the development of commercial applications.