Li Hanyu, Dong Zhiwei, Zhou Haijing, et al. Calculation of atmospheric attenuation of THz electromagnetic wave through line by line integral[J]. High Power Laser and Particle Beams, 2013, 25: 1445-1449. doi: 10.3788/HPLPB20132506.1445
Citation:
Li Hanyu, Dong Zhiwei, Zhou Haijing, et al. Calculation of atmospheric attenuation of THz electromagnetic wave through line by line integral[J]. High Power Laser and Particle Beams, 2013, 25: 1445-1449. doi: 10.3788/HPLPB20132506.1445
Li Hanyu, Dong Zhiwei, Zhou Haijing, et al. Calculation of atmospheric attenuation of THz electromagnetic wave through line by line integral[J]. High Power Laser and Particle Beams, 2013, 25: 1445-1449. doi: 10.3788/HPLPB20132506.1445
Citation:
Li Hanyu, Dong Zhiwei, Zhou Haijing, et al. Calculation of atmospheric attenuation of THz electromagnetic wave through line by line integral[J]. High Power Laser and Particle Beams, 2013, 25: 1445-1449. doi: 10.3788/HPLPB20132506.1445
Institute of Applied Physics and Computational Mathematics,Beijing 100094,China; 2.Research Center of Laser Fusion,CAEP,Chengdu 610041,China; 3.Terahertz Research Center,CAEP,Mianyang 621900,China
The atmosphere is opaque to terahertz wave, hence knowing accurately the location and width of atmospheric transmission windows is crucial to facilitating any type of applications utilizing THz technology. In this paper, the line-by-line integral method is used to calculate the THz atmospheric transmittance attenuation. Based on the molecular line data provided by HITRAN 2008 database, the calculation results of the attenuation characteristics of H2O, O2, O3, CO2 and N2 gas with certain density, temperature and pressure are presented and discussed. The results indicate that vapor and oxygen contribute the most to THz transmittance attenuation under the natural conditions in the 0-3 THz range.
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