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Uniaxial epsilon-near-zero metamaterials for giant enhancement of the transverse magneto-optical Kerr effect

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Author(s):
Moncada-Villa, E. ; Oliveira Jr, Osvaldo N. ; Mejia-Salazar, J. R.
Total Authors: 3
Document type: Journal article
Source: PHYSICAL REVIEW B; v. 102, n. 16, p. 5-pg., 2020-10-06.
Abstract

We demonstrate a giant enhancement of the transverse magneto-optical Kerr effect. In contrast to conventional magnetoplasmonic structures, we exploit surface plasmon resonances (SPRs) excited along the surface of a ferromagnetic substrate on which a uniaxial epsilon-near-zero (ENZ) metamaterial is grown. In this design, bulky prism couplers are not required and SPR sensors can be produced in integrated, miniaturized systems. We also obtained the analytical expression for the ENZ-SPR phase-matching condition, which can be used for the straightforward design of plasmonic and magnetoplasmonic devices. (AU)

FAPESP's process: 18/22214-6 - Towards a convergence of technologies: from sensing and biosensing to information visualization and machine learning for data analysis in clinical diagnosis
Grantee:Osvaldo Novais de Oliveira Junior
Support Opportunities: Research Projects - Thematic Grants