Dispersionless optical activity in metamaterials

Kirsty Hannam; David A. Powell; Ilya V. Shadrivov; Yuri S. Kivshar

doi:10.1063/1.4807438

Dispersionless optical activity in metamaterials

Kirsty Hannam, David A. Powell, Ilya V. Shadrivov, Yuri S. Kivshar

Research output: Contribution to journal › Article › peer-review

34 Citations (Scopus)

Abstract

We introduce a chiral metamaterial with strong, non-resonant optical activity and very low polarization ellipticity. We achieve this by combining a meta-atom and its complementary structure into a meta-molecule, resulting in the coupling of magnetic and electric dipole responses. In contrast to either a pair of crosses or complementary crosses, this structure has low dispersion in the optical activity at the transmission resonance. We also study the excitation mechanism in this structure and optimize the optical activity through changing the twist angle.

Original language	English
Article number	201121
Journal	Applied Physics Letters
Volume	102
Issue number	20
DOIs	https://doi.org/10.1063/1.4807438
Publication status	Published - 20 May 2013

Access to Document

10.1063/1.4807438

Cite this

@article{452570d5518649a8aa8a2f7f5f03aca2,

title = "Dispersionless optical activity in metamaterials",

abstract = "We introduce a chiral metamaterial with strong, non-resonant optical activity and very low polarization ellipticity. We achieve this by combining a meta-atom and its complementary structure into a meta-molecule, resulting in the coupling of magnetic and electric dipole responses. In contrast to either a pair of crosses or complementary crosses, this structure has low dispersion in the optical activity at the transmission resonance. We also study the excitation mechanism in this structure and optimize the optical activity through changing the twist angle.",

author = "Kirsty Hannam and Powell, {David A.} and Shadrivov, {Ilya V.} and Kivshar, {Yuri S.}",

year = "2013",

month = may,

day = "20",

doi = "10.1063/1.4807438",

language = "English",

volume = "102",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "20",

}

TY - JOUR

T1 - Dispersionless optical activity in metamaterials

AU - Hannam, Kirsty

AU - Powell, David A.

AU - Shadrivov, Ilya V.

AU - Kivshar, Yuri S.

PY - 2013/5/20

Y1 - 2013/5/20

N2 - We introduce a chiral metamaterial with strong, non-resonant optical activity and very low polarization ellipticity. We achieve this by combining a meta-atom and its complementary structure into a meta-molecule, resulting in the coupling of magnetic and electric dipole responses. In contrast to either a pair of crosses or complementary crosses, this structure has low dispersion in the optical activity at the transmission resonance. We also study the excitation mechanism in this structure and optimize the optical activity through changing the twist angle.

AB - We introduce a chiral metamaterial with strong, non-resonant optical activity and very low polarization ellipticity. We achieve this by combining a meta-atom and its complementary structure into a meta-molecule, resulting in the coupling of magnetic and electric dipole responses. In contrast to either a pair of crosses or complementary crosses, this structure has low dispersion in the optical activity at the transmission resonance. We also study the excitation mechanism in this structure and optimize the optical activity through changing the twist angle.

UR - http://www.scopus.com/inward/record.url?scp=84878368109&partnerID=8YFLogxK

U2 - 10.1063/1.4807438

DO - 10.1063/1.4807438

M3 - Article

SN - 0003-6951

VL - 102

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 20

M1 - 201121

ER -

Dispersionless optical activity in metamaterials

Abstract

Access to Document

Other files and links

Fingerprint

Cite this