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Title:
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Study of scattering patterns and subwavelength scale imaging based on finite-sized metamaterials.
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Author:
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Zhang, Yuan.; Chuang, Yi-Chen.; Schenk, John O.; Fiddy, Michael A.
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Copyright year:
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2011 |
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Abstract:
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A metamaterial slab, used as a superlens in a subwavelength imaging system, is frequently assumed homogeneous. It is the bulk properties of the metamaterial which are responsible for the resolution of the transferred information in the image domain, as a result of high transverse wave-vector coupling. However, how in a discretized metamaterial, individual meta-atoms (i.e., the meta-elements composing a negative index metamaterial slab) contribute to the imaging process is still actively studied. The main aim of this paper is to investigate the consequences of using only a few meta-atoms as a negative index slab-equivalent for subwavelength scale imaging. We make a specific choice for a meta-atom and investigate its resonant scattering patterns. We report on how knowledge of these 3D scattering patterns provides a means to understand the transfer of high spatial frequencies and assist with the design an improved negative index slab. |
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Subject:
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DRNTU::Engineering::Electrical and electronic engineering. |
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Type:
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Journal Article |
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Series/ Journal Title:
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Applied physics A: materials science & processing |
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School:
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School of Electrical and Electronic Engineering |
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Related Organization:
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Electromagnetics Academy at Zhejiang University, China
Center for Optoelectronics and Optical Communications, Univ. of North Carolina at Charlotte, USA
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Rights:
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© Springer-Verlag 2011. |
