Contribution of the surface plasmon resonance to optical and magneto-optical properties of a Bi:YIG-Au nanostructure

Fujikawa, R.; Baryshev, A. V.; Kim, J.; Uchida, Hironaga; Inoue, M.

doi:10.1063/1.2829036

Cited by 74 publications

(50 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This observation contradicts to the results for the Bi:YIG/Au composite films 4,8,9) . Since Ag is chemically active material, plasmonic Ag particles were separated from Bi:YIG by nonmagnetic Ag compounds.…”

Section: Methodscontrasting

confidence: 56%

“…In fact, MO responses associated with plasmon were reported about theoretical study 5) , multicore-shell structure 6) , YIG/Au granular film 7) . We demonstrated enhancement of Faraday rotation for Bi:YIG composite films with Au particles 8) , where the Au particles were fabricated by heating Au thin films. Spectral position of LSPR depends on material and size of particles.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Magneto-optical plasmonic Bi:YIG composite films with Ag and Au-Ag alloy particles

et al. 2009

Self Cite

View full text Add to dashboard Cite

To obtain enhancement and wavelength tuning of the magneto-optical (MO) response associated with the localized surface plasmon resonance (LSPR), bismuth-substituted yttrium iron garnet (Bi:YIG) composite films with Ag particles and Au-Ag alloy particles were studied. The Bi:YIG composite film with Ag particles did not show any enhancement of Faraday rotation. On the contrary, the Bi:YIG composite films with Au-Ag particles exhibited the enhancement of the MO response for different wavelengths of LSPR. We observed the enhanced Faraday rotation for the Bi:YIG/Au-Ag composite films with volume ratios of Ag up to 0.6. In addition, when changing the volume ratio of Ag, the peak of rotation shifted to short wavelengths. Disappearance of enhancement for the Bi:YIG/Ag composite film can be addressed to modifying the interfacial medium between the MO host and Ag. Since chemically active Ag particles can form nonmagnetic Ag compound shells separating Bi:YIG and the plasmonic subsystem, the LSPR of Ag particles did not affect the MO response. The Au-Ag alloy particles were chemically stable in the Bi:YIG/Au-Ag composite films.

show abstract

Section: Methodscontrasting

confidence: 56%

Section: Introductionmentioning

confidence: 99%

Magneto-optical plasmonic Bi:YIG composite films with Ag and Au-Ag alloy particles

et al. 2009

Self Cite

View full text Add to dashboard Cite

show abstract

“…Combining plasmonics with magneto-optics is of particular interest [2][3][4][5][6][7][8] , as it enables sophisticated control of magneto-optical material properties, which can lead to many optical devices where magnetism is applied. For example, by hybridizing ferromagnetic and noble metal materials, the magneto-optical polar Kerr effect was enhanced, which was termed 'magneto-plasmonics' 9,10 .…”

mentioning

confidence: 99%

Nonreciprocal plasmonics enables giant enhancement of thin-film Faraday rotation

et al. 2013

View full text Add to dashboard Cite

Light propagation is usually reciprocal. However, a static magnetic field along the propagation direction can break the time-reversal symmetry in the presence of magneto-optical materials. The Faraday effect in magneto-optical materials rotates the polarization plane of light, and when light travels backward the polarization is further rotated. This is applied in optical isolators, which are of crucial importance in optical systems. Faraday isolators are typically bulky due to the weak Faraday effect of available magneto-optical materials. The growing research endeavour in integrated optics demands thin-film Faraday rotators and enhancement of the Faraday effect. Here, we report significant enhancement of Faraday rotation by hybridizing plasmonics with magneto-optics. By fabricating plasmonic nanostructures on laser-deposited magneto-optical thin films, Faraday rotation is enhanced by one order of magnitude in our experiment, while high transparency is maintained. We elucidate the enhanced Faraday effect by the interplay between plasmons and different photonic waveguide modes in our system.

show abstract

“…Examples of such structures include noble metal-ferromagnetic multilayers [26][27][28][29], metallic sandwich-structure nanodisks [30,31], and magnetic garnet films with integrated noble metal nanoparticles [32,33] or gratings [34]. In all these realizations, the magnetic constituent is in direct contact with the noble metal.…”

Section: Introductionmentioning

confidence: 99%

Hybrid Ni/SiO2/Au dimer arrays for high-resolution refractive index sensing

et al. 2018

View full text Add to dashboard Cite

Abstract:We introduce a novel magnetoplasmonic sensor concept for sensitive detection of refractive index changes. The sensor consists of a periodic array of Ni/ SiO 2 /Au dimer nanodisks. Combined effects of near-field interactions between the Ni and Au disks within the individual dimers and far-field diffractive coupling between the dimers of the array produce narrow linewidth features in the magneto-optical Faraday spectrum. We associate these features with the excitation of surface lattice resonances and show that they exhibit a spectral shift when the refractive index of the surrounding environment is varied. Because the resonances are sharp, refractive index changes are accurately detected by tracking the wavelength where the Faraday signal crosses 0. Compared to random distributions of pure Ni nanodisks or Ni/SiO 2 /Au dimers or periodic arrays of Ni nanodisks, the sensing figure of merit of the hybrid magnetoplasmonic array is more than one order of magnitude larger.

show abstract

Contribution of the surface plasmon resonance to optical and magneto-optical properties of a Bi:YIG-Au nanostructure

Cited by 74 publications

References 10 publications

Magneto-optical plasmonic Bi:YIG composite films with Ag and Au-Ag alloy particles

Magneto-optical plasmonic Bi:YIG composite films with Ag and Au-Ag alloy particles

Nonreciprocal plasmonics enables giant enhancement of thin-film Faraday rotation

Hybrid Ni/SiO2/Au dimer arrays for high-resolution refractive index sensing

Contact Info

Product

Resources

About