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Comparison of Experimental and Theoretical Determined Terahertz Attenuation in Controlled Rain

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Abstract

The effects of rain attenuation on 0.1- to 1-THz frequencies are reported in this paper. The THz pulses propagate through a rain chamber over a 4-m distance and are measured by THz time-domain spectroscopy (THz-TDS). A rain chamber is designed to generate controllable and reproducible rain conditions with different intensities. Image analysis software is employed to characterize the distribution of generated raindrop sizes. Theoretical THz power attenuations due to rain are calculated using Mie scattering theory and are compared with our measurements. Results show that both experimental and theoretical results are in very good agreement with each other.

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Acknowledgments

This material is based upon work supported by the National Science Foundation under Grant No. ECCS-1102222. Technical assistance by C. Nicoletti with the THz-TDS instrument is gratefully acknowledged.

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Authors and Affiliations

  1. Department of Physics, New Jersey Institute of Technology, 322 King Blvd, Newark, NJ, 07102, USA

    Jianjun Ma, Francis Vorrius, Lucas Lamb, Lothar Moeller & John F. Federici

Authors
  1. Jianjun Ma
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  2. Francis Vorrius
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  3. Lucas Lamb
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  4. Lothar Moeller
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  5. John F. Federici
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Correspondence to Jianjun Ma.

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Ma, J., Vorrius, F., Lamb, L. et al. Comparison of Experimental and Theoretical Determined Terahertz Attenuation in Controlled Rain. J Infrared Milli Terahz Waves 36, 1195–1202 (2015). https://doi.org/10.1007/s10762-015-0200-6

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  • DOI: https://doi.org/10.1007/s10762-015-0200-6

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