New experimental methods in terahertz spectroscopy

E. J. Slingerland; T. M Goyette; R. H. Giles; W. E. Nixon

doi:10.1117/12.873290

23 February 2011 New experimental methods in terahertz spectroscopy

E. J. Slingerland, T. M Goyette, R. H. Giles, W. E. Nixon

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Proceedings Volume 7938, Terahertz Technology and Applications IV; 793803 (2011) https://doi.org/10.1117/12.873290
Event: SPIE OPTO, 2011, San Francisco, California, United States

Abstract

Spectroscopic studies are useful in a range of areas, from remote sensing and radio astronomy to the medical community. Since spectroscopy can provide information used to identify chemicals, new techniques have been developed for high-resolution measurements of chemical absorption frequencies. These high-resolution measurements not only enhance accuracy of the molecule's energy level transitions, but also allow for environmental information to be gathered through collisional broadening of the spectral lines. High-resolution measurements, made possible by far-infrared lasers coupled with Schottky diodes, were supplemented with data taken by variable pathlength FTIR measurements in the terahertz region. Chemicals investigated include methanol, nitromethane, water and its isotopes.

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E. J. Slingerland, T. M Goyette, R. H. Giles, and W. E. Nixon "New experimental methods in terahertz spectroscopy", Proc. SPIE 7938, Terahertz Technology and Applications IV, 793803 (23 February 2011); https://doi.org/10.1117/12.873290

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