Terahertz Lens Fabricated by Natural Dolomite
Si-Bo Hao, Zi-Li Zhang** , Yuan-Yuan Ma, Meng-Yu Chen, Yang Liu, Hao-Chong Huang, Zhi-Yuan Zheng**
School of Science, China University of Geosciences, Beijing 100083
Abstract ：Optical operations have served as the basis of spectroscopy and imaging in terahertz regimes for a long time. Available lenses are practical tools for modulations. We fabricate a kind of biconvex lens from the natural dolomite cluster. The lens works well at 0.1 THz based on the relatively high refractive index and low absorption coefficients. Compared with the lens fabricated by a dolomite stone, such a lens can focus dispersive terahertz beam efficiently in terahertz imaging systems, which indicates that natural minerals hold promising applications in terahertz optics.
收稿日期: 2019-07-29
出版日期: 2019-11-25
:
42.25.Bs
(Wave propagation, transmission and absorption)
41.85.Ew
(Particle beam profile, beam intensity)
81.05.-t
(Specific materials: fabrication, treatment, testing, and analysis)
42.79.-e
(Optical elements, devices, and systems)
42.79.Bh
(Lenses, prisms and mirrors)
引用本文:
. [J]. 中国物理快报, 2019, 36(12): 124205-.
链接本文:
https://cpl.iphy.ac.cn/CN/10.1088/0256-307X/36/12/124205
或
https://cpl.iphy.ac.cn/CN/Y2019/V36/I12/124205
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2019, Vol. 36 
