Magnetically tunable surface plasmon resonance based on a composite consisting of noble metal nanoparticles and a ferromagnetic thin film | Zendy

Chih-Ming Wei | Zendy; ChihWei Chen | Zendy; Chun-Hsiung Wang | Zendy; Ju-Ying Chen | Zendy; Yuchuan Chen | Zendy; YangFang Chen | Zendy

Open Access

Magnetically tunable surface plasmon resonance based on a composite consisting of noble metal nanoparticles and a ferromagnetic thin film

Author(s) -

Chih-Ming Wei,

ChihWei Chen,

Chun-Hsiung Wang,

Ju-Ying Chen,

Yuchuan Chen,

YangFang Chen

Publication year - 2011

Publication title -

optics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.524

H-Index - 272

eISSN - 1071-2763

pISSN - 0146-9592

DOI - 10.1364/ol.36.000514

Subject(s) - materials science , surface plasmon resonance , ferromagnetic resonance , surface plasmon , noble metal , laser linewidth , thin film , localized surface plasmon , surface plasmon polariton , dielectric , plasmon , nanoparticle , resonance (particle physics) , ferromagnetism , optoelectronics , magnetization , optics , condensed matter physics , nanotechnology , magnetic field , metal , laser , physics , quantum mechanics , particle physics , metallurgy

We demonstrate magnetically tunable surface plasmon resonance based on a composite consisting of noble metal nanoparticles and ferromagnetic thin film. We found that both the frequency and linewidth of the localized surface plasmon resonance can be manipulated by applying an external magnetic field. The underlying mechanism is attributed to the variation of the dielectric constant in the ferromagnetic thin film resulting from the change of magnetization. Our result shown here paves an alternative route for manipulation of the characteristics of the surface plasmon resonance, which may serve as a new design concept for the development of magneto-optical devices.

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