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학술지 A Flexible Metamaterial with Negative Refractive Index at Visible Wavelength
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저자
최무한, 최종호, 강병수, 최춘기
발행일
201310
출처
Current Applied Physics, v.13 no.8, pp.1723-1727
ISSN
1567-1739
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.cap.2013.06.028
협약과제
13SE1400, 메타물질 기반 나노분해능 이미징 시스템 기술 개발, 최춘기
초록
In this paper, we demonstrated a realization of a flexible metamaterial with negative refractive index operating at visible wavelength. With the help of Finite-Difference Time-Domain (FDTD) method, we could establish design rules for the metamaterial and analyze the characteristics of it. To this end, the fishnet structure with the unit cell size 185 nm by 240 nm was fabricated. Due to the polymer dielectric spacer between the metal-layers, the metamaterial is freestanding without base substrate and additional backside etching process. Crown Copyright © 2013 Published by Elsevier B.V. All rights reserved.
키워드
Fishnet structure, Flexible metamaterial, Focused ion beam, Negative refractive index, Visible wavelength
KSP 제안 키워드
185 nm, 40 nm, Design rule, Etching process, Finite-difference time-domain (fdtd) method, Flexible metamaterial, Focused ion beam, Negative refractive index, Polymer dielectric, Unit cell size, dielectric spacer