Broken time reversal of light interaction with planar chiral nanostructures

A. S. Schwanecke; A. Krasavin; D. M. Bagnall; A. Potts; A. V. Zayats; N. I. Zheludev

doi:10.1103/PhysRevLett.91.247404

Broken time reversal of light interaction with planar chiral nanostructures

A. S. Schwanecke, A. Krasavin, D. M. Bagnall, A. Potts, A. V. Zayats, N. I. Zheludev^*

^*Corresponding author for this work

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

120 Citations (Scopus)

Abstract

We report unambiguous experimental evidence of broken time-reversal symmetry for the interaction of light with an artificial nonmagnetic material. Polarized color images of planar chiral gold-on-silicon nanostructures consisting of arrays of gammadions show intriguing and unusual symmetry: structures, which are geometrically mirror images, lose their mirror symmetry in polarized light. The symmetry of images can be described only in terms of antisymmetry (black-and-white symmetry) appropriate to a time-odd process. The effect results from a transverse chiral nonlocal electromagnetic response of the structure and has some striking resemblance with the expected features of light scattering on anyon matter.

Original language	English
Journal	Physical Review Letters
Volume	91
Issue number	24
DOIs	https://doi.org/10.1103/PhysRevLett.91.247404
Publication status	Published - 12 Dec 2003
Externally published	Yes

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AU - Schwanecke, A. S.

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AU - Bagnall, D. M.

AU - Potts, A.

AU - Zayats, A. V.

AU - Zheludev, N. I.

PY - 2003/12/12

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AB - We report unambiguous experimental evidence of broken time-reversal symmetry for the interaction of light with an artificial nonmagnetic material. Polarized color images of planar chiral gold-on-silicon nanostructures consisting of arrays of gammadions show intriguing and unusual symmetry: structures, which are geometrically mirror images, lose their mirror symmetry in polarized light. The symmetry of images can be described only in terms of antisymmetry (black-and-white symmetry) appropriate to a time-odd process. The effect results from a transverse chiral nonlocal electromagnetic response of the structure and has some striking resemblance with the expected features of light scattering on anyon matter.

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Broken time reversal of light interaction with planar chiral nanostructures

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