NDLI: Cavity induced perfect absorption in metamaterials

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Cavity induced perfect absorption in metamaterials

Content Provider	Scilit
Author	Dang, Hong Luu Nguyen, Hoang Tung Nguyen, Van Dung Bui, Son Tung Le, Dac Tuyen Ngo, Quang Minh Vu, Dinh Lam
Copyright Year	2016
Description	Journal: Advances in Natural Sciences: Nanoscience and Nanotechnology We present novel resonant modes at the THz regime in a structure combining conventional metamaterial absorber (MA) with a cavity (MAC). The well-known structure consisting of three individual layers of periodic metallic dishes on the top, a dielectric layer in the middle, and a metallic film in the bottom is used, and the cavity is formed on the top layer by changing the geometry of the metallic dishes. MACs with various cavity parameters are designed and their absorption characteristics, such as magnetic field distribution, surface current, and power loss density at resonant frequencies of the designed structure, are numerically investigated. Resonant effects in this work may find applications in THz tunable and broadband MA, and our investigation on the dependence of the absorption frequency and absorption intensity on the geometric cavity of the designed structure will provide a general guideline for MAC design.
Related Links	http://iopscience.iop.org/article/10.1088/2043-6262/7/1/015015/pdf
ISSN	20436254
e-ISSN	20436262
DOI	10.1088/2043-6262/7/1/015015
Journal	Advances in Natural Sciences: Nanoscience and Nanotechnology
Issue Number	1
Volume Number	7
Language	English
Publisher	IOP Publishing
Publisher Date	2016-02-29
Access Restriction	Open
Subject Keyword	Journal: Advances in Natural Sciences: Nanoscience and Nanotechnology Absorption Frequency
Content Type	Text
Resource Type	Article

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