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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 9 — Apr. 25, 2011
  • pp: 8830–8838

Measurement of the transmission of the atmosphere from 0.2 to 2 THz

Yihong Yang, Alisha Shutler, and D. Grischkowsky  »View Author Affiliations

Optics Express, Vol. 19, Issue 9, pp. 8830-8838 (2011)

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The attenuation of electromagnetic wave propagation in the clear atmosphere from low frequencies up to 2 THz is mainly caused by water vapor. Although there have been many numerical simulations and excellent early sub-mm and far-infrared measurements of this attenuation, there has remained controversy about the background absorption in the most promising windows of transparency below 1 THz. Here, we report an accurate terahertz time-domain spectroscopy (THz-TDS) characterization of water vapor from 0.2 to 2 THz. Our results agree with the previous predicted and measured attenuations for the weak water lines, but show more attenuation for the relatively transparent windows between these lines.

© 2011 OSA

OCIS Codes
(010.1320) Atmospheric and oceanic optics : Atmospheric transmittance
(300.6495) Spectroscopy : Spectroscopy, teraherz
(010.1030) Atmospheric and oceanic optics : Absorption

ToC Category:
Atmospheric and Oceanic Optics

Original Manuscript: February 4, 2011
Revised Manuscript: April 4, 2011
Manuscript Accepted: April 16, 2011
Published: April 21, 2011

Yihong Yang, Alisha Shutler, and D. Grischkowsky, "Measurement of the transmission of the atmosphere from 0.2 to 2 THz," Opt. Express 19, 8830-8838 (2011)

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