Two-dimensional high-quality Ag/Py magnetoplasmonic crystals

Pomozov, A. R.; Chekhov, A. L.; Rodionov, Ilya A.; Baburin, Aleksandr S.; Lotkov, Evgeniy S.; Temiryazeva, M. P.; Afanasyev, K. N.; Baryshev, A. V.; Murzina, T. V.

doi:10.1063/1.5135711

Cited by 12 publications

(7 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Bearing in mind the importance of optical measurements of the magnetization states and its applications in domain detection [14], ultrafast dynamics probing [3], sensing [15], biosensing [16,17] and magnetometry [18], we focus our study on the peculiarities of the Faraday effect that arises from the optical and magnetic anisotropy of FeBO 3 crystal. In contrast to the recent studies that exploit the features of the nanoplasmonic [19][20][21][22][23] and nanophotonic [24][25][26] structures, we show that optical * ignatyeva@physics.msu.ru anisotropy of the crystal itself provides a powerful tool for the drastic increase of the magneto-optical effects.…”

contrasting

confidence: 92%

Birefringence-mediated enhancement of the magneto-optical activity in anisotropic magnetic crystals

Ignatyeva¹,

Voronov²,

Shilina³

et al. 2021

Preprint

View full text Add to dashboard Cite

Antiferromagnets are promising for magneto-optical light control that could be performed at THz frequencies via excitation of the quasi-antiferromagnetic spin modes. However, most of the antiferromagnetic crystals possess optical anisotropy that is usually treated as an unfavorable condition for the magneto-optical measurements: optical anisotropy is known to diminish the Faraday rotation with respect to the case of the isotropic medium. Here we show that the situation could be quite opposite: a phenomenon of birefringence mediated enhancement of the magneto-optical activity appears if the orientation of the incident light linear polarization is chosen properly. The present study relies on the experimental, analytical, and numerical studies of iron borate FeBO3 crystals. We demonstrate a significant increase of the magneto-optical activity by more than 10 times for 70 • angle between light polarization and incidence plane instead of commonly-used p-or s-polarizations. It provides a unique sensitivity to the in-plane magnetization of FeBO3 that is crucial for the pumpprobe studies, magneto-optical microscopy, and others. The most important practical application of the observed phenomenon is the light modulation with up to 100% efficiency at THz frequencies. The approach is applicable to other types of birefringent crystals with the magneto-optical response.

show abstract

contrasting

confidence: 92%

Birefringence-mediated enhancement of the magneto-optical activity in anisotropic magnetic crystals

Ignatyeva¹,

Voronov²,

Shilina³

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…The spectral shift of anomalous transmission with respect to the calculated SPP dispersion curves can be associated with the scattering losses in subwavelength nanoholes [42,43], non-planar shape of the perforated film, complicated shape of the holes, redistribution of intensity between different diffraction orders [10], etc. It should be noted that the long-range (1,0) and (−1,0) modes match well with the local transmission minimum, analogously to the spectra of cylindrical nanoholes' arrays in Ag/Py film [21] and analogous apertures' array in Au film [43]. Spectral positions of V-like transmission maxima are closer to the short-range branches than to long-range ones.…”

Section: Discussionsupporting

confidence: 61%

“…Periodic magneto-optical (MO) nanostructures that support the SPP excitation are recalled magnetoplasmonic crystals (MPCs) and were studied in a number of papers. The investigated structures were obtained both by different top-down lithographic techniques [4,5,[18][19][20][21][22] and by the bottom-up self-assembly method, such as metal deposition on the surface of colloidal crystal [23].…”

Section: Introductionmentioning

confidence: 99%

Size Effects in Optical and Magneto-Optical Response of Opal-Cobalt Heterostructures

et al. 2021

View full text Add to dashboard Cite

Search for new types of efficient magnetoplasmonic structures that combine high transparency with strong magneto-optical (MO) activity is an actual problem. Here, we demonstrate that composite heterostructures based on thin perfectly-arranged opal films and a perforated cobalt nanolayer meet these requirements. Anomalous transmission appears due to periodic perforation of Co consistent with the regular set of voids between opal spheres, while resonantly enhanced MO response involves the effects of surface plasmon-polariton (SPP) excitation at opal/Co interface or those associated with photonic band gap (PBG) in opal photonic crrystals. We observed the enhancement of the MO effect of up to 0.6% in the spectral vicinity of the SPP excitation, and several times less strong effect close to the PBG, while the combined appearance of PBG and SPP decreases the resultant MO response. Observed resonant magneto-optical properties of opal/Co heterostructures show that they can be treated as functional self-assembled magnetoplasmonic crystals with resonantly enhanced and controllable MO effect.

show abstract

“…At normal incidence the MO effect vanishes, which is typical for MPC. [34] In the longitudinal geometry of the applied magnetic field, the MO effect consisting in the polarization plane rotation of the probe radiation is the most pronounced for the WG modes propagating in the epitaxial garnet layer (shown in Figure 2b); it is accumulated similar to the case of the Faraday effect in bulk magnetic materials, while the SPP resonances are less evident. The sign of the effect depends on the direction of the WG modes' propagation and is an odd function of the angle of incidence.…”

Section: Mo Effects In Encapsulated Mpcmentioning

confidence: 89%

Resonant Magnetooptical Effects in Encapsulated 1D Plasmonic Crystals

Pomozov

Maydykovskiy

Ketsko

et al. 2022

Advanced Photonics Research

Self Cite

View full text Add to dashboard Cite

New approaches for the composition of efficient robust plasmonic crystals are very desired for practical applications as well as for the observation of new exciting effects at the nanoscale. Herein, both experimentally and theoretically resonant optical effects in encapsulated magnetoplasmonic crystals composed of a 1D gold grating sandwiched between two layers of iron garnet with slightly different dielectric properties are studied. It is demonstrated that depending on the geometry of the magnetic field application, various mechanisms provide resonant enhancement of the magnetooptical (MO) response of the structure; the strongest MO effect is attained for the case of waveguide modes propagating in iron garnet dielectric layer along the longitudinal magnetic field, when the magnetization‐induced rotation of the polarization plane up to a few degrees is observed. The obtained results demonstrate high potential of magnetoplasmonic waveguides as stable and efficient plasmonic devices.

show abstract

Two-dimensional high-quality Ag/Py magnetoplasmonic crystals

Cited by 12 publications

References 26 publications

Birefringence-mediated enhancement of the magneto-optical activity in anisotropic magnetic crystals

Birefringence-mediated enhancement of the magneto-optical activity in anisotropic magnetic crystals

Size Effects in Optical and Magneto-Optical Response of Opal-Cobalt Heterostructures

Resonant Magnetooptical Effects in Encapsulated 1D Plasmonic Crystals

Contact Info

Product

Resources

About