All-optical modulation and switching by a metamaterial of plasmonic circuits

Davis, T, Gomez, D and Eftekhari, F 2014, 'All-optical modulation and switching by a metamaterial of plasmonic circuits', Optics Letters, vol. 39, no. 16, pp. 4938-4941.


Document type: Journal Article
Collection: Journal Articles

Title All-optical modulation and switching by a metamaterial of plasmonic circuits
Author(s) Davis, T
Gomez, D
Eftekhari, F
Year 2014
Journal name Optics Letters
Volume number 39
Issue number 16
Start page 4938
End page 4941
Total pages 4
Publisher Optical Society of America
Abstract We demonstrate experimentally the modulation and switching of one light beam by a second beam using metamaterials constructed from arrays of plasmonic circuits. Each circuit consists of three gold nanorods that mix together two coherent but orthogonally polarized light beams leading to modulation by an interference effect. By adjusting the phase and the amplitude of one of the beams, the amplitude and spectral composition of the second beam is altered. The plasmonic circuits display an asymmetry that enables an angle-dependent modulation, which we demonstrate with a diffraction grating where the energy directed into two diffraction orders is controlled by a second light beam. This effect appears like an optically controlled blaze that we use to switch a light beam between two different directions.
Subject Nanomaterials
Physical Chemistry of Materials
Nanofabrication, Growth and Self Assembly
Copyright notice © 2014 Optical Society of America
ISSN 0146-9592
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