Journal
SENSORS AND ACTUATORS A-PHYSICAL
Volume 279, Issue -, Pages 248-253Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.sna.2018.06.033
Keywords
Michelson interferometer; Optical Kerr effect; Nano-sensors; Plasmonic nanoparticles
Funding
- Institute Politecnico Nacional [SIP-2018]
- Consejo Nacional de Ciencia y Tecnologia [CB-2015-251201]
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Herein is addresses the application of attractive and large magnetization of carbon nanotubes for modulating optical signals. A cascade system based on multiwall carbon nanotubes in thin film form and Au nanoparticles embedded in a TiO2 thin solid film were combined to achieve a nonlinear magneto-optical switching action. An all-optical switching device rising from an optical Kerr effect in the second stage is proposed to transmit a magneto-optical signal from the first stage. Multiwall carbon nanotubes with large magnetic sensitivity were incorporated in the arm of a Michelson interferometer to promote a change in the refractive index due to the Aharonov-Bohm effect. The Michelson interferometer was monitoring magneto-optical processes by a 532 nm wavelength. The second stage was recorded with a 532 nm nanosecond two-wave mixing configuration testing Au nanoparticles embedded in a TiO2 thin film. The development of simultaneous all-optical and magneto-optical systems is attractive since multifunctional quantum operations can be contemplated to be performed in low-dimensional platforms. In this paper is proposed a switching device that exploits interferometry for detecting magnetic signals and optical Kerr gating with the advantages of distinct nanostructures. (C) 2018 Elsevier B.V. All rights reserved.
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