High-Q surface modes in photonic crystal/iron garnet film heterostructures for sensor applications

Ignatyeva, Daria O.; Kapralov, P. O.; Knyazev, G. A.; Sekatskii, S. K.; Dietler, Giovanni; Nur-E-Alam, Mohammad; Vasiliev, Mikhail; Alameh, Kamal; Belotelov, V. I.

doi:10.1134/s0021364016220094

Cited by 37 publications

(21 citation statements)

References 25 publications

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“…Light modulation by magnetic field has been successfully used for various practical applications such as magneto-optical modulators, isolators, routers and other non-reciprocal devices 1 – 8 , magneto-optical biosensors 9 – 14 as well as magnetometers 15 – 18 . For all of the named areas, it is important, on the one hand, to increase the magneto-optical performance of the nanostructure, and on the other hand, to achieve miniaturization of the device and make it compatible with integrated optics.…”

Section: Introductionmentioning

confidence: 99%

All-dielectric magnetic metasurface for advanced light control in dual polarizations combined with high-Q resonances

et al. 2020

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Nanostructured magnetic materials provide an efficient tool for light manipulation on sub-nanosecond and sub-micron scales, and allow for the observation of the novel effects which are fundamentally impossible in smooth films. For many cases of practical importance, it is vital to observe the magneto-optical intensity modulation in a dual-polarization regime. However, the nanostructures reported on up to date usually utilize a transverse Kerr effect and thus provide light modulation only for p-polarized light. We present a concept of a transparent magnetic metasurface to solve this problem, and demonstrate a novel mechanism for magneto-optical modulation. A 2D array of bismuth-substituted iron-garnet nanopillars on an ultrathin iron-garnet slab forms a metasurface supporting quasi-waveguide mode excitation. In contrast to plasmonic structures, the all-dielectric magnetic metasurface is shown to exhibit much higher transparency and superior quality-factor resonances, followed by a multifold increase in light intensity modulation. The existence of a wide variety of excited mode types allows for advanced light control: transmittance of both p- and s-polarized illumination becomes sensitive to the medium magnetization, something that is fundamentally impossible in smooth magnetic films. The proposed metasurface is very promising for sensing, magnetometry and light modulation applications.

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Section: Introductionmentioning

confidence: 99%

All-dielectric magnetic metasurface for advanced light control in dual polarizations combined with high-Q resonances

et al. 2020

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“…The quality factor of the sensing structure is crucially important both for SPR and MOSPR sensing, since the steeper the resonance is, the higher response is observed for the same variation of the analyte. In this sense, MO structures using ferromagnetic dielectrics, for example, bismuth-substituted [27] or cerium-substituted [28] garnets, are preferable as they are transparent and do not introduce additional losses, in contrast to ferromagnetic metals such as Co and Ni. On the other hand, utilization of the photonic-crystal structures could also allow for the increase of SPR [29] and, consequently, the MOSPR quality factor [30].…”

Section: Sensitivity Metricsmentioning

confidence: 99%

“…On the other hand, utilization of the photonic-crystal structures could also allow for the increase of SPR [29] and, consequently, the MOSPR quality factor [30]. The consequential increase of the sensitivity of photonic-crystal MOSPR sensor was demonstrated [27,31].…”

Section: Sensitivity Metricsmentioning

confidence: 99%

Surface Plasmon Resonance (SPR) to Magneto-Optic SPR

et al. 2019

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In this editorial, a brief background of the surface plasmon resonance (SPR) principle is discussed, followed by several aspects of magneto-optic SPR (MOSPR) and sensing schemes from the viewpoint of fundamental studies and potential technological applications. New sensitivity metrics are introduced that would allow researchers to compare the performance of SPR and MOSPR-based sensors. Merits of MOSPR over SPR based sensors and challenges faced by MOSPR sensors in terms of their practical use and portability are also considered. The editorial ends with potential new configurations and future prospects. This work is considered highly significant to device engineers, graduate and undergraduate students, and researchers of all levels involved in developing new classes of bio-devices for sensing, imaging, environmental monitoring, toxic gas detection, and surveying applications to name a few.

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“…Another possibility to increase the resonance Q-factor is to introduce a magnetic material in the sensing structure and to utilize the magneto-optical measurements of the transverse magneto-optical Kerr effect (TMOKE) instead of optical reflectance spectra [ 5 , 19 , 20 , 21 , 22 ]. The magneto-optical response can be enhanced with a variety of metamaterials [ 23 , 24 , 25 , 26 ], plasmonic coatings, dielectric nanostructures [ 27 , 28 , 29 ], and photonic crystals [ 30 , 31 , 32 , 33 ].…”

Section: Introductionmentioning

confidence: 99%

“…A combination of these two approaches, excitation of a photonic-crystal supported Tamm surface mode and performing the magneto-optical measurements, was recently reported to be very promising from the point of view of dramatical increase of the sensor sensitivity [ 30 , 31 , 32 ]. However, as the TMOKE is observed only in the p-polarization of the incident light, this approach does not allow to perform magneto-optical measurements in a dual-channel regime for a simultaneous detection of the bulk and surface refractive indices of the analyte.…”

Section: Introductionmentioning

confidence: 99%

Sensing of Surface and Bulk Refractive Index Using Magnetophotonic Crystal with Hybrid Magneto-Optical Response

Ignatyeva

Kapralov

Golovko

et al. 2021

Sensors

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We propose an all-dielectric magneto-photonic crystal with a hybrid magneto-optical response that allows for the simultaneous measurements of the surface and bulk refractive index of the analyzed substance. The approach is based on two different spectral features of the magneto-optical response corresponding to the resonances in p- and s-polarizations of the incident light. Angular spectra of p-polarized light have a step-like behavior near the total internal reflection angle which position is sensitive to the bulk refractive index. S-polarized light excites the TE-polarized optical Tamm surface mode localized in a submicron region near the photonic crystal surface and is sensitive to the refractive index of the near-surface analyte. We propose to measure a hybrid magneto-optical intensity modulation of p-polarized light obtained by switching the magnetic field between the transverse and polar configurations. The transversal component of the external magnetic field is responsible for the magneto-optical resonance near total internal reflection conditions, and the polar component reveals the resonance of the Tamm surface mode. Therefore, both surface- and bulk-associated features are present in the magneto-optical spectra of the p-polarized light.

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High-Q surface modes in photonic crystal/iron garnet film heterostructures for sensor applications

Cited by 37 publications

References 25 publications

All-dielectric magnetic metasurface for advanced light control in dual polarizations combined with high-Q resonances

All-dielectric magnetic metasurface for advanced light control in dual polarizations combined with high-Q resonances

Surface Plasmon Resonance (SPR) to Magneto-Optic SPR

Sensing of Surface and Bulk Refractive Index Using Magnetophotonic Crystal with Hybrid Magneto-Optical Response

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