Measurement of parameters of 0.14 THz high-power terahertz pulse

Wang Guangqiang; Wang Jianguo; Li Xiaoze; Li Shuang; Tong Changjiang; Wang Xuefeng

doi:10.3788/HPLPB20132506.1499

Volume 25 Issue 06

Apr. 2013

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Article Navigation > High Power Laser and Particle Beams > 2013 > 25(06): 1499-1503

Zhu Sitao, Yi Chaolong, Chen Changhua, et al. Radiation mechanism analysis and optimized design of TEM horn antennas[J]. High Power Laser and Particle Beams, 2013, 25: 2368-2372. doi: 10.3788/HPLPB20132509.2368

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Wang Guangqiang, Wang Jianguo, Li Xiaoze, et al. Measurement of parameters of 0.14 THz high-power terahertz pulse[J]. High Power Laser and Particle Beams, 2013, 25: 1499-1503. doi: 10.3788/HPLPB20132506.1499

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Measurement of parameters of 0.14 THz high-power terahertz pulse

doi: 10.3788/HPLPB20132506.1499

1.
Northwest Institute of Nuclear Technology,P.O.Box 69-12,Xi’an 710024,China;
2.
School of Electronics and Information Engineering,Xi’an Jiaotong University,Xi’an 710049,China

Received Date: 2012-09-28
Rev Recd Date: 2012-12-03
Publish Date: 2013-04-08

Abstract

Abstract

The measuring methods and experimental results for the parameters including frequency and power of 0.14 THz high-power terahertz pulse are presented. Characterized by high frequency, high peak power and short pulse duration, the terahertz pulse is experimentally measured in frequency using subharmonic heterodyne method combined with cut-off waveguide method, while the far-field power distribution of the radiation pulse is obtained by integration method of power density in the radiation field, and then the radiation power of the single pulse is presented. The measured results under certain experimental conditions show that the high-power terahertz pulse has a frequency of 0.146 3 THz, a pulse duration of about 1.5 ns, and a power level of not less than 0.5 MW.
- terahertz pulse,
- high-power,
- subharmonic heterodyne,
- radiation field

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