Free-standing terahertz chiral meta-foils exhibiting strong optical activity and negative refractive index

被引：50

作者：

Wu, Jianfeng ^{[1
]}

Ng, Binghao ^{[2
]}

Turaga, Shuvan P. ^{[1
]}

Breese, Mark B. H. ^{[1
,3
]}

Maier, Stefan A. ^{[2
]}

Hong, Minghui ^{[4
]}

Bettiol, Andrew A. ^{[1
]}

Moser, Herbert O. ^{[5
,6
]}

机构：

[1] Natl Univ Singapore, CIBA, Dept Phys, Singapore 117542, Singapore

[2] Univ London Imperial Coll Sci Technol & Med, Dept Phys, London SW7 2AZ, England

[3] Natl Univ Singapore, SSLS, Singapore 117603, Singapore

[4] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore

[5] Karlsruhe Inst Technol, Network Excellent Retired Scientists NES, D-76021 Karlsruhe, Germany

[6] Karlsruhe Inst Technol, IMT, D-76021 Karlsruhe, Germany

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 14期

基金：

英国工程与自然科学研究理事会;

关键词：

PHOTONIC METAMATERIALS;

D O I：

10.1063/1.4823594

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A chiral meta-foil consisting of a self-supported square array of interconnected conjugated rosettes is demonstrated at terahertz frequencies. It exhibits strong optical activity and circular dichroism. Negative refractive index with a figure-of-merit as high as 4.2 is achieved, attributed to its free-standing nature. Experimental results are in good agreement with numerical simulation. Free-standing chiral meta-foils provide a unique approach to create a completely all-metal chiral metamaterial, which can be flexibly integrated into optical setups while eliminating dielectric insertion losses. (C) 2013 AIP Publishing LLC.

引用

页数：4

共 12 条

[1] Giant optical activity and negative refractive index in the terahertz region using complementary chiral metamaterials
Ding, Yubin
Zhang, GuoPing
Cheng, Yongzhi
PHYSICA SCRIPTA, 2012, 85 (06)
[2] Bi-layer cross chiral structure with strong optical activity and negative refractive index
Dong, Jianfeng
Zhou, Jiangfeng
Koschny, Thomas
Soukoulis, Costas
OPTICS EXPRESS, 2009, 17 (16): : 14172 - 14179
[3] Complementary chiral metamaterials with giant optical activity and negative refractive index
Li, Zhaofeng
Alici, Kamil Boratay
Colak, Evrim
Ozbay, Ekmel
APPLIED PHYSICS LETTERS, 2011, 98 (16)
[4] Chiral metamaterials: from optical activity and negative refractive index to asymmetric transmission
Li, Zhaofeng
Mutlu, Mehmet
Ozbay, Ekmel
JOURNAL OF OPTICS, 2013, 15 (02)
[5] Flexible chiral metamaterials with dynamically optical activity and high negative refractive index
Dincer, Furkan
Karaaslan, Muharrem
Unal, Emin
Akgol, Oguzhan
Sabah, Cumali
MODERN PHYSICS LETTERS B, 2015, 29 (18):
[6] Conjugated gammadion chiral metamaterial with uniaxial optical activity and negative refractive index
Zhao, R.
Zhang, L.
Zhou, J.
Koschny, Th.
Soukoulis, C. M.
PHYSICAL REVIEW B, 2011, 83 (03):
[7] Investigation on strong optical activity and negative refractive index in double-layer metallic wires planar chiral structure
Li Jie
Yang Fang-Qing
Dung Jian-Feng
ACTA PHYSICA SINICA, 2011, 60 (12)
[8] DUAL-BAND TERAHERTZ CHIRAL METAMATERIAL WITH GIANT OPTICAL ACTIVITY AND NEGATIVE REFRACTIVE INDEX BASED ON CROSS-WIRE STRUCURE
Fang, Fang
Cheng, Yongzhi
PROGRESS IN ELECTROMAGNETICS RESEARCH M, 2013, 31 (31): : 59 - 69
[9] Dual- and Multiband Chiral Metamaterial Structures With Strong Optical Activity and Negative Refraction Index
Zarifi, Davoud
Soleimani, Mohammad
Nayyeri, Vahid
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2012, 11 : 334 - 337
[10] A NOVEL DUAL-BAND CHIRAL METAMATERIAL STRUCTURE WITH GIANT OPTICAL ACTIVITY AND NEGATIVE REFRACTIVE INDEX
Zarifi, D.
Soleimani, M.
Nayyeri, V.
JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS, 2012, 26 (2-3) : 251 - 263

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