Surface sensitivity of optical and magneto-optical and ellipsometric properties in magnetoplasmonic nanodisks

Herreño-Fierro, César A.; Patiño, Edgar J.; Armelles, G.; Cebollada, A.

doi:10.1063/1.4939772

Cited by 27 publications

(13 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In 2015, Zubritskaya et al demonstrated that nickel dimers are able to report nanoscale distances while optimizing their own spatial orientation with about 2 orders of magnitude higher precision than current state-of-the-art plasmon rulers [66]. In 2016 Herreño-Fierro et al showed that ellipsometric phase-based transducers can be used for bio-chemical sensing purposes [127]. In 2018, Pourjamal et al showed that hybrid Ni/SiO2/Au dimer arrays display improved sensing performances if compared to random distributions of pure Ni nanodisks and/or their random counterpart [128].…”

Section: E Magneto-optical Effects In Dot-and Antidot Periodic Arraysmentioning

confidence: 99%

Nanoscale magnetophotonics

Maccaferri

Zubritskaya

Razdolski

et al. 2020

Journal of Applied Physics

120

View full text Add to dashboard Cite

This Perspective surveys the state-of-the-art and future prospects of science and technology employing the nanoconfined light (nanophotonics and nanoplasmonics) in combination with magnetism. We denote this field broadly as nanoscale magnetophotonics. We include a general introduction to the field and describe the emerging magneto-optical effects in magnetoplasmonic and magnetophotonic nanostructures supporting localized and propagating plasmons. Special attention is given to magnetoplasmonic crystals with transverse magnetization and the associated nanophotonic non-reciprocal effects, and to magneto-optical effects in periodic arrays of nanostructures. We give also an overview of the applications of these systems in biological and chemical sensing, as well as in light polarization and phase control. We further review the area of nonlinear magnetophotonics, the semiconductor spin-plasmonics, and the general principles and applications of opto-magnetism and nano-optical ultrafast control of magnetism and spintronics.

show abstract

Section: E Magneto-optical Effects In Dot-and Antidot Periodic Arraysmentioning

confidence: 99%

Nanoscale magnetophotonics

Maccaferri

Zubritskaya

Razdolski

et al. 2020

Journal of Applied Physics

120

View full text Add to dashboard Cite

show abstract

“…Nanoplasmonic structures, such as gratings, nanoholes, nanoparticles, etc open a way for further SPR-sensor development 6 7 8 9 . Localized surface plasmon resonances can be excited in such structures so that the electromagnetic field is concentrated in a very small area near the nanoparticle that makes localized surface plasmon resonance very sensitive to the refractive index of the surrounding media and, as a result, some localized surface plasmon resonance-based sensors showed very high sensitivity.…”

mentioning

confidence: 99%

Magneto-optical plasmonic heterostructure with ultranarrow resonance for sensing applications

Ignatyeva

Knyazev

Kapralov

et al. 2016

Sci Rep

122

106

View full text Add to dashboard Cite

Currently, sensors invade into our everyday life to bring higher life standards, excellent medical diagnostic and efficient security. Plasmonic biosensors demonstrate an outstanding performance ranking themselves among best candidates for different applications. However, their sensitivity is still limited that prevents further expansion. Here we present a novel concept of magnetoplasmonic sensor with ultranarrow resonances and high sensitivity. Our approach is based on the combination of a specially designed one-dimensional photonic crystal and a ferromagnetic layer to realize ultralong-range propagating magnetoplasmons and to detect alteration of the environment refractive index via observation of the modifications in the Transversal Magnetooptical Kerr Effect spectrum. The fabrication of such a structure is relatively easy in comparison with e.g. nanopatterned samples. The fabricated heterostructure shows extremely sharp (angular width of 0.06°) surface plasmon resonance and even sharper magnetoplasmonic resonance (angular width is 0.02°). It corresponds to the propagation length as large as 106 μm which is record for magnetoplasmons and promising for magneto-optical interferometry and plasmonic circuitry as well as magnetic field sensing. The magnitude of the Kerr effect of 11% is achieved which allows for detection limit of 1∙10−6. The prospects of further increase of the sensitivity of this approach are discussed.

show abstract

“…Strong dependence of LSPR on the dielectric environment allows for the detection of biomolecules in MOKE or MCD measurements. 10 − 12 , 18 − 23 However, aggregates or different organic compounds that have similar dielectric permittivity are nearly indistinguishable, therefore preventing the simultaneous quantitative detection of different types of proteins or organic molecules.…”

mentioning

confidence: 99%

Strong Magneto-Optical Response of Nonmagnetic Organic Materials Coupled to Plasmonic Nanostructures

et al. 2017

View full text Add to dashboard Cite

Plasmonic nanoparticles (PNPs) can significantly modify the optical properties of nearby organic molecules and thus present an attractive opportunity for sensing applications. However, the utilization of PNPs in conventional absorption, fluorescence, or Raman spectroscopy techniques is often ineffective due to strong absorption background and light scattering, particularly in the case of turbid solutions, cell suspensions, and biological tissues. Here we show that nonmagnetic organic molecules may exhibit magneto-optical response due to binding to a PNP. Specifically, we detect strong magnetic circular dichroism signal from supramolecular J-aggregates, a representative organic dye, upon binding to silver-coated gold nanorods. We explain this effect by strong coupling between the J-aggregate exciton and the nanoparticle plasmon, leading to the formation of a hybrid state in which the exciton effectively acquires magnetic properties from the plasmon. Our findings are fully corroborated by theoretical modeling and constitute a novel magnetic method for chemo- and biosensing, which (upon adequate PNP functionalization) is intrinsically insensitive to the organic background and thus offers a significant advantage over conventional spectroscopy techniques.

show abstract

Surface sensitivity of optical and magneto-optical and ellipsometric properties in magnetoplasmonic nanodisks

Cited by 27 publications

References 30 publications

Nanoscale magnetophotonics

Nanoscale magnetophotonics

Magneto-optical plasmonic heterostructure with ultranarrow resonance for sensing applications

Strong Magneto-Optical Response of Nonmagnetic Organic Materials Coupled to Plasmonic Nanostructures

Contact Info

Product

Resources

About