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http://hdl.handle.net/10397/36187
Title: | Meta-microwindmill structure with multiple absorption peaks for the detection of ketamine and amphetamine type stimulants in terahertz domain | Authors: | Cao, S Yu, WX Wang, TS Shen, HH Han, XD Xu, WB Zhang, XM |
Issue Date: | 1-Sep-2014 | Source: | Optical materials express, 1 Sept. 2014, v. 4, no. 9, p. 1876-1884 | Abstract: | We report a metamaterial based microwindmill array with a periodic arrangement that can be used in terahertz detector as an absorbing layer. It is found that this structure can absorb terahertz waves efficiently with an average absorptivity of 95% at multiple frequencies of 1.516, 2.205, 2.424 and 2.565 THz, which are absorption peaks of four kinds of drugs. The efficient absorbing property of meta-microwindmill on terahertz wave can be explained in terms of the synergetic effects of localized surface plasmon resonant effect and slow light mode. Moreover, the effect of the error of the structural parameters on the absorption efficiency is carefully analyzed in detail to guide the fabrication. | Publisher: | Optical Society of America | Journal: | Optical materials express | ISSN: | 2159-3930 (eISSN) | DOI: | 10.1364/OME.4.001876 | Rights: | © 2014 Optica Publishing Group. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modifications of the content of this paper are prohibited. The following publication Shun Cao, Weixing Yu, Taisheng Wang, Honghai Shen, Xudong Han, Wenbin Xu, and Xuming Zhang, "Meta-microwindmill structure with multiple absorption peaks for the detection of ketamine and amphetamine type stimulants in terahertz domain," Opt. Mater. Express 4, 1876-1884 (2014) is available at https://doi.org/10.1364/OME.4.001876. |
Appears in Collections: | Journal/Magazine Article |
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Cao_Meta-Microwindmill_Structure_Multiple.pdf | Pre-Published version | 621.21 kB | Adobe PDF | View/Open |
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