Evidence of localized surface plasmon enhanced magneto-optical effect in nanodisk array

Guan Xiang Du; Tetsuji Mori; Michiaki Suzuki; Shin Saito; Hiroaki Fukuda; Migaku Takahashi

doi:10.1063/1.3334726

Evidence of localized surface plasmon enhanced magneto-optical effect in nanodisk array

Guan Xiang Du, Tetsuji Mori, Michiaki Suzuki, Shin Saito, Hiroaki Fukuda, Migaku Takahashi

ENG - Electronic Engineering

Research output: Contribution to journal › Article › peer-review

70 Citations (Scopus)

Abstract

Nanodisk array with sandwich structure of Au/[Co/Pt]_n/Au was fabricated by electron beam lithography combined with argon ion milling. Excitation of localized surface plasmon resonance (LSPR) was demonstrated for various disk diameters. Magneto-optical (MO) properties were measured by a home-made micro-Faraday system at wavelengths of 633 and 690 nm. Faraday ellipticity at 690 nm showed non-monotonic dependence on disk diameter and reached maximum for disk diameter of 84 nm, which was associated with LSPR at 690 nm. The experimental results show direct evidence for LSPR enhancement effect on MO properties. The optical and MO properties were fitted by average field approximation.

Original language	English
Article number	081915
Journal	Applied Physics Letters
Volume	96
Issue number	8
DOIs	https://doi.org/10.1063/1.3334726
Publication status	Published - 2010

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10.1063/1.3334726

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title = "Evidence of localized surface plasmon enhanced magneto-optical effect in nanodisk array",

abstract = "Nanodisk array with sandwich structure of Au/[Co/Pt]n/Au was fabricated by electron beam lithography combined with argon ion milling. Excitation of localized surface plasmon resonance (LSPR) was demonstrated for various disk diameters. Magneto-optical (MO) properties were measured by a home-made micro-Faraday system at wavelengths of 633 and 690 nm. Faraday ellipticity at 690 nm showed non-monotonic dependence on disk diameter and reached maximum for disk diameter of 84 nm, which was associated with LSPR at 690 nm. The experimental results show direct evidence for LSPR enhancement effect on MO properties. The optical and MO properties were fitted by average field approximation.",

author = "Du, {Guan Xiang} and Tetsuji Mori and Michiaki Suzuki and Shin Saito and Hiroaki Fukuda and Migaku Takahashi",

note = "Funding Information: This work was partly supported by JSPS program of Postdoctoral Fellowship for Foreign researchers (Grant-in-Aid No. 2109282).",

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doi = "10.1063/1.3334726",

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volume = "96",

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T1 - Evidence of localized surface plasmon enhanced magneto-optical effect in nanodisk array

AU - Du, Guan Xiang

AU - Mori, Tetsuji

AU - Suzuki, Michiaki

AU - Saito, Shin

AU - Fukuda, Hiroaki

AU - Takahashi, Migaku

N1 - Funding Information: This work was partly supported by JSPS program of Postdoctoral Fellowship for Foreign researchers (Grant-in-Aid No. 2109282).

PY - 2010

Y1 - 2010

N2 - Nanodisk array with sandwich structure of Au/[Co/Pt]n/Au was fabricated by electron beam lithography combined with argon ion milling. Excitation of localized surface plasmon resonance (LSPR) was demonstrated for various disk diameters. Magneto-optical (MO) properties were measured by a home-made micro-Faraday system at wavelengths of 633 and 690 nm. Faraday ellipticity at 690 nm showed non-monotonic dependence on disk diameter and reached maximum for disk diameter of 84 nm, which was associated with LSPR at 690 nm. The experimental results show direct evidence for LSPR enhancement effect on MO properties. The optical and MO properties were fitted by average field approximation.

AB - Nanodisk array with sandwich structure of Au/[Co/Pt]n/Au was fabricated by electron beam lithography combined with argon ion milling. Excitation of localized surface plasmon resonance (LSPR) was demonstrated for various disk diameters. Magneto-optical (MO) properties were measured by a home-made micro-Faraday system at wavelengths of 633 and 690 nm. Faraday ellipticity at 690 nm showed non-monotonic dependence on disk diameter and reached maximum for disk diameter of 84 nm, which was associated with LSPR at 690 nm. The experimental results show direct evidence for LSPR enhancement effect on MO properties. The optical and MO properties were fitted by average field approximation.

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Evidence of localized surface plasmon enhanced magneto-optical effect in nanodisk array

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