ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Solar-blind ultraviolet band-pass filter based on metal-dielectric multilayer structures |
Wang Tian-Jiao (王天娇), Xu Wei-Zong (徐尉宗), Lu Hai (陆海), Ren Fang-Fang (任芳芳), Chen Dun-Jun (陈敦军), Zhang Rong (张荣), Zheng You-Dou (郑有炓) |
Key Laboratory of Advanced Photonic and Electronic Materials of Jiangsu Province, and School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China |
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Abstract Solar-blind ultraviolet (UV) band-pass filter has significant value in many scientific, commercial, and military applications, in which the detection of weak UV signal against a strong background of solar radiation is required. In this work, a solar-blind filter is designed based on the concept of “transparent metal”. The filter consisting of Al/SiO2 multilayers could exhibit a high transmission in the solar-blind wavelength region and a wide stopband extending from near-ultraviolet to infrared wavelength range. The central wavelength, bandwidth, Q factor, and rejection ratio of the passband are numerically studied as a function of individual layer thickness and multilayer period.
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Received: 28 October 2013
Revised: 29 November 2013
Accepted manuscript online:
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PACS:
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42.25.Bs
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(Wave propagation, transmission and absorption)
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78.20.-e
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(Optical properties of bulk materials and thin films)
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78.20.Bh
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(Theory, models, and numerical simulation)
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85.60.Gz
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(Photodetectors (including infrared and CCD detectors))
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Fund: Project supported by the National Basic Research Program of China (Grant Nos. 2010CB327504, 2011CB922100, and 2011CB301900), the National Natural Science Foundation of China (Grant Nos. 60936004 and 11104130), the Natural Science Foundation of Jiangsu Province, China (Grant Nos. BK2011556 and BK2011050), and the Priority Academic Program Development of Jiangsu Higher Education Institutions, China. |
Corresponding Authors:
Lu Hai
E-mail: hailu@nju.edu.cn
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About author: 42.25.Bs; 78.20.-e; 78.20.Bh; 85.60.Gz |
Cite this article:
Wang Tian-Jiao (王天娇), Xu Wei-Zong (徐尉宗), Lu Hai (陆海), Ren Fang-Fang (任芳芳), Chen Dun-Jun (陈敦军), Zhang Rong (张荣), Zheng You-Dou (郑有炓) Solar-blind ultraviolet band-pass filter based on metal-dielectric multilayer structures 2014 Chin. Phys. B 23 074201
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