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Proceedings Paper

Research on the beam spot size measurement of terahertz laser
Author(s): YanZhao Yang; Bin Jiang; Chengping Ying; Kunfeng Chen; Bin Wu; HengFei Wang
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Paper Abstract

Terahertz technology is getting fast development in scientific research and the characteristics of terahertz beam is of great importance when using a terahertz laser. In this paper we scan the THz beam along its diameter by a slit and a circular aperture to measure the THz beam’s power distribution and thus get its spot’s size. The results show that the beam spot of the THz source we employed is satisfied with Gaussian distribution. The value of the peak power would affect the determination of the spot boundary, the influence of environmental noise will increases when the the peak power become weak and the measured spot diameter will be too large ultimately.

Paper Details

Date Published: 8 March 2017
PDF: 5 pages
Proc. SPIE 10255, Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016, 102553D (8 March 2017); doi: 10.1117/12.2267295
Show Author Affiliations
YanZhao Yang, The 41st Institute of China Electronics Technology Group Corp. (China)
Bin Jiang, The 41st Institute of China Electronics Technology Group Corp. (China)
Chengping Ying, The 41st Institute of China Electronics Technology Group Corp. (China)
Kunfeng Chen, The 41st Institute of China Electronics Technology Group Corp. (China)
Bin Wu, Science and Technology on Electronic Test and Measurement Lab. (China)
HengFei Wang, Science and Technology on Electronic Test and Measurement Lab. (China)


Published in SPIE Proceedings Vol. 10255:
Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016
Yueguang Lv; Jialing Le; Hesheng Chen; Jianyu Wang; Jianda Shao, Editor(s)

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