Authors: Kuz'michev, Alexey N.
Kreilkamp, Lars E.
Nur-E-Alam, Mohammad
Bezus, Evgeni
Vasiliev, Mikhail
Akimov, Iliya A.
Alameh, Kamal
Bayer, Manfred
Belotelov, Vladimir I.
Title: Tunable optical nanocavity of iron-garnet with a buried metal layer
Language (ISO): en
Abstract: We report on the fabrication and characterization of a novel magnetophotonic structure designed as iron garnet based magneto-optical nanoresonator cavity constrained by two noble metal mirrors. Since the iron garnet layer requires annealing at high temperatures, the fabrication process can be rather challenging. Special approaches for the protection of metal layers against oxidation and morphological changes along with a special plasma-assisted polishing of the iron garnet layer surface were used to achieve a 10-fold enhancement of the Faraday rotation angle (up to 10.8∘/μm) within a special resonance peak of 12 nm (FWHM) linewidth at a wavelength of 772 nm, in the case of a resonator with two silver mirrors. These structures are promising for tunable nanophotonics applications, in particular, they can be used as magneto-optical (MO) metal-insulator-metal waveguides and modulators.
Subject Headings: Planar waveguides
Surface plasmon-polariton
Faraday effect
Gyrotropic media
Optical nanocavity
Metal nanocavity
Subject Headings (RSWK): Polariton
Issue Date: 2015-05-28
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Appears in Collections:Experimentelle Physik II

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