| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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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
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| Cite this article: |
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Si-Bo Hao, Zi-Li Zhang, Yuan-Yuan Ma et al 2019 Chin. Phys. Lett. 36 124205 |
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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.
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Received: 29 July 2019
Published: 25 November 2019
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| PACS: |
42.25.Bs
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(Wave propagation, transmission and absorption)
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41.85.Ew
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(Particle beam profile, beam intensity)
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81.05.-t
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(Specific materials: fabrication, treatment, testing, and analysis)
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42.79.-e
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(Optical elements, devices, and systems)
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42.79.Bh
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(Lenses, prisms and mirrors)
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| Fund: Supported by the National Natural Science Foundation of China under Grant No 61805214, and the Fundamental Research Funds for the Central Universities under Grant No 2652017142. |
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