Giant enhancement of the transverse magneto-optical Kerr effect through the coupling of 
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-near-zero and surface plasmon polariton modes

Girón-Sedas, J. A.; Gómez, Faustino Reyes; Albella, Pablo; Mejía‐Salazar, J. R.; Oliveira, Osvaldo N.

doi:10.1103/physrevb.96.075415

Cited by 29 publications

(21 citation statements)

References 53 publications

(69 reference statements)

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“…Results for the TMOKE are presented in Figure 4c, while the corresponding peak position changes and sensitivity (S = −18.08 • /RIU) are shown in Figure 4d. We expect that further studies inspired by this seminal work can reach improved detection limits, even higher than our previous magnetoplasmonic proposals [25,26] because of the lossless optical response.…”

Section: Introductionmentioning

confidence: 79%

“…The second drawback arises from large level of losses in noble and ferromagnetic metals at optical and infrared frequencies. Despite our earlier efforts on this topic [25,26], where we introduced the use of ε-near-zero materials, for giant enhancement of the TMOKE without the need to use prisms or grating couplers, applications are still challenged by optical losses associated with the presence of ferromagnetic metals.…”

Section: Introductionmentioning

confidence: 99%

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High-Refractive-Index Materials for Giant Enhancement of the Transverse Magneto-Optical Kerr Effect

Moncada-Villa

Mejía‐Salazar

2020

Sensors

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The ability of plasmonic structures to confine and enhance light at nanometer length scales has been traditionally exploited to boost the magneto-optical effects in magneto-plasmonic structures. These platforms allows for light control via externally applied magnetic fields, which is of prime importance for sensing, data storage, optical-isolation, and telecommunications applications. However, applications are hindered by the high-level of ohmic losses associated to metallic and ferromagnetic components. Here, we use a lossless all-dielectric platform for giant enhancement of the magneto-optical effects. Our structure consists of a high-refractive index dielectric film on top of a magnetic dielectric substrate. We numerically demonstrate an extraordinarily enhanced transverse magneto-optical Kerr effect due to the Fabry–Perot resonances supported by the high-refractive index slab. Potential applications for sensing and biosensing are also illustrated in this work.

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Section: Introductionmentioning

confidence: 79%

Section: Introductionmentioning

confidence: 99%

High-Refractive-Index Materials for Giant Enhancement of the Transverse Magneto-Optical Kerr Effect

Moncada-Villa

Mejía‐Salazar

2020

Sensors

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“…In this structure calculated thickness of dielectric is 23.2 nm and that for absorbing layer is 15.62 nm. [38,39].…”

Section: Cpa Designed By Modified Admittance In Symmetric Structurmentioning

confidence: 99%

“…Controlling the relative phase between the counter incoming beams, this simple geometry has potential applications in optical switch [19] and integrated modulator [35]. It can also be employed in coherent detector [22], sensing device by magnetoplasmonic structure in irfrared to visible spectrum [36,37] and biosensing device by excitation of SPR [38]. Admittance matching method is easily applicable to extract an optimum design with the required parameters for a specific optical device than other method.…”

Section: Introductionmentioning

confidence: 99%

Coherent perfect absorption in epsilon-near-zero ITO thin film in near infrared

Badsha¹

2020

Opt. Pura Apl.

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Perfect absorption is one of the important application of epsilon-near-zero (ENZ) material. We analyze here the coherent perfect absorption (CPA) in single and bilayer of ENZ thin film of ITO by admittance matching method. To enhance the absorption, a coupling layer of dielectric is to deposit on the substrate with an ENZ ITO layer. CPA conditions are presented here in simulation results which are obtained for p-polarized light. This mode is comparable with the transverse resonance effect. In order to obtain the symmetric results, the optimum polarization direction of illumination is also extracted here. Employing the ENZ CPA property of ITO, this structure is applicable in optical switching, modulation and sensor at the telecommunication regime.

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“…The ability to confine electromagnetic energy in a small space at the medium's ENZ wavelength motivates a search for highly confined propagating polariton modes using ENZ materials. It has been experimentally shown that three layer structures, where a sub-wavelength thin layer of indium tin oxide is sandwiched between two dielectric layers, can support ENZ polariton modes 16,29,30 . Here we present the existence of propagating mode in an optical fiber with nano-hollow channel modified with an ENZ layer within which enhanced field is excited.…”

mentioning

confidence: 99%

Excitation of epsilon-near-zero resonance in ultra-thin indium tin oxide shell embedded nanostructured optical fiber

Minn

Anopchenko

Yang

et al. 2018

Sci Rep

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We report a novel optical waveguide design of a hollow step index fiber modified with a thin layer of indium tin oxide (ITO). We show an excitation of highly confined waveguide mode in the proposed fiber near the wavelength where permittivity of ITO approaches zero. Due to the high field confinement within thin ITO shell inside the fiber, the epsilon-near-zero (ENZ) mode can be characterized by a peak in modal loss of the hybrid waveguide. Our results show that such in-fiber excitation of ENZ mode is due to the coupling of the guided core mode to the thin-film ENZ mode. We also show that the phase matching wavelength, where the coupling takes place, varies depending on the refractive index of the constituents inside the central bore of the fiber. These ENZ nanostructured optical fibers have many potential applications, for example, in ENZ nonlinear and magneto-optics, as in-fiber wavelength-dependent filters, and as subwavelength fluid channel for optical and bio-photonic sensing.

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Giant enhancement of the transverse magneto-optical Kerr effect through the coupling of ɛ -near-zero and surface plasmon polariton modes

Cited by 29 publications

References 53 publications

High-Refractive-Index Materials for Giant Enhancement of the Transverse Magneto-Optical Kerr Effect

High-Refractive-Index Materials for Giant Enhancement of the Transverse Magneto-Optical Kerr Effect

Coherent perfect absorption in epsilon-near-zero ITO thin film in near infrared

Excitation of epsilon-near-zero resonance in ultra-thin indium tin oxide shell embedded nanostructured optical fiber

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