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Electromagnetic wave analogue of an electronic diode

Electromagnetic wave analogue of an electronic diode
Electromagnetic wave analogue of an electronic diode
An electronic diode is a nonlinear semiconductor circuit component that allows conduction of electrical current in one direction only. A component with similar functionality for electromagnetic waves, an electromagnetic isolator, is based on the Faraday effect of rotation of the polarization state and is also a key component in optical and microwave systems. Here we demonstrate a chiral electromagnetic diode, which is a direct analogue of an electronic diode: its functionality is underpinned by an extraordinarily strong nonlinear wave propagation effect in the same way as the electronic diode function is provided by the nonlinear current characteristic of a semiconductor junction. The effect exploited in this new electromagnetic diode is an intensity-dependent polarization change in an artificial chiral metamolecule. This microwave effect exceeds a similar optical effect previously observed in natural crystals by more than 12 orders of magnitude and a direction-dependent transmission that differs by a factor of 65.
Shadrivov, IIya V.
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Fedotov, Vassili A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Powell, David A.
7f7e26cc-7554-4878-9697-d93e978e0f7b
Kivshar, Yuri S.
f0714217-1054-4ab5-ab95-9dcd30829ee2
Zheludev, Nikolay I.
32fb6af7-97e4-4d11-bca6-805745e40cc6
Shadrivov, IIya V.
0b642351-31e2-459e-a5be-5271da5fb7e7
Fedotov, Vassili A.
3725f5cc-2d0b-4e61-95c5-26d187c84f25
Powell, David A.
7f7e26cc-7554-4878-9697-d93e978e0f7b
Kivshar, Yuri S.
f0714217-1054-4ab5-ab95-9dcd30829ee2
Zheludev, Nikolay I.
32fb6af7-97e4-4d11-bca6-805745e40cc6

Shadrivov, IIya V., Fedotov, Vassili A., Powell, David A., Kivshar, Yuri S. and Zheludev, Nikolay I. (2011) Electromagnetic wave analogue of an electronic diode. New Journal of Physics, 13 (3). (doi:10.1088/1367-2630/13/3/033025).

Record type: Article

Abstract

An electronic diode is a nonlinear semiconductor circuit component that allows conduction of electrical current in one direction only. A component with similar functionality for electromagnetic waves, an electromagnetic isolator, is based on the Faraday effect of rotation of the polarization state and is also a key component in optical and microwave systems. Here we demonstrate a chiral electromagnetic diode, which is a direct analogue of an electronic diode: its functionality is underpinned by an extraordinarily strong nonlinear wave propagation effect in the same way as the electronic diode function is provided by the nonlinear current characteristic of a semiconductor junction. The effect exploited in this new electromagnetic diode is an intensity-dependent polarization change in an artificial chiral metamolecule. This microwave effect exceeds a similar optical effect previously observed in natural crystals by more than 12 orders of magnitude and a direction-dependent transmission that differs by a factor of 65.

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More information

Published date: March 2011
Organisations: Optoelectronics Research Centre

Identifiers

Local EPrints ID: 178821
URI: https://eprints.soton.ac.uk/id/eprint/178821
PURE UUID: 485e99c8-78bb-4b43-b11a-0beb9f4081b9
ORCID for Nikolay I. Zheludev: ORCID iD orcid.org/0000-0002-1013-6636

Catalogue record

Date deposited: 08 Apr 2011 13:34
Last modified: 19 Nov 2019 02:00

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