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Title

Interaction Effects between Magnetic and Chiral Building Blocks: A New Route for Tunable Magneto-chiral Plasmonic Structures

AuthorsArmelles Reig, Gaspar ; Cebollada, Alfonso ; Feng, Hua Yu; García-Martín, Antonio ; Meneses-Rodríguez, David ; Zhao, Jun; Giessen, Harald
KeywordsOptical activity
Circular dichroism
Plasmons
Magneto-optics
Chiral
Issue Date2015
PublisherAmerican Chemical Society
CitationACS Photonics 2(9): 1272-1277 (2015)
Abstract© 2015 American Chemical Society. We propose a novel active magneto-chiral system consisting of a separated Au/Co multilayer with perpendicular magnetic anisotropy and plasmonic chiral oligomers. The electromagnetic interaction between the Au/Co multilayer and chiral building blocks, which is governed by their separation distance, plays a relevant role in the control of both magneto-optical and chiral activity, resulting in a strong effect on the chiro-optical response. Due to the interaction-induced detuning of the disk resonances in the oligomers, the chiro-optical activity decreases with increasing interaction strength. The possibility to tune both magneto- and chiro-optical properties of the system by controlling the interaction strength opens the door for the fabrication of magneto-chiral systems in a wide spectral range, which is determined by both constituting magnetic and chiral components, as well as their electromagnetic interaction.
Publisher version (URL)http://dx.doi.org/10.1021/acsphotonics.5b00158
URIhttp://hdl.handle.net/10261/130268
DOI10.1021/acsphotonics.5b00158
Identifiersissn: 2330-4022
Appears in Collections:(IMN-CNM) Artículos
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