Nonlocal nonlinear magneto-optical response of a magnetoplasmonic crystal

Razdolski, Ilya; Gheorghe, Diana G.; Melander, Emil; Hjörvarsson, Bjørgvin; Patoka, Piotr; Kimel, A.V.; Kirilyuk, Andrei; Papaioannou, Evangelos Th.; Rasing, T.H.M.

doi:10.1103/physrevb.88.075436

Cited by 28 publications

(31 citation statements)

References 48 publications

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“…We note here that work performed by Razdolski et al16 showed an enhanced contrast ratio of transverse MSHG by surface plasmon. The authors attributed this enhancement to a change in phase difference between magnetic and non-magnetic responses.…”

supporting

confidence: 47%

Control of magnetic contrast with nonlinear magneto-plasmonics

Zheng

Hanbicki

Jonker

et al. 2014

Sci Rep

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The interaction between surface plasmons (SP) and magnetic behavior has generated great research interest due to its potential for future magneto-optical devices with ultra-high sensitivity and ultra-fast switching. Here we combine two surface sensitive effects: magnetic second-harmonic generation (MSHG) and SP to enhance the detection sensitivity of the surface magnetization in a single-crystal iron film. We show that the MSHG signal can be significantly enhanced by SP in an attenuated total reflection (ATR) condition, and that the magnetic contrast can be varied over a wide range by the angle-of-incidence. Furthermore, the magnetic contrast of transverse and longitudinal MSHG display opposite trends, which originates from the change of relative phase between MSHG components. This new effect enhances the sensing of magnetic switching, which has potential usage in quaternary magnetic storage systems and bio-chemical sensors due to its very high surface sensitivity and simple structure.

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confidence: 47%

Control of magnetic contrast with nonlinear magneto-plasmonics

Zheng

Hanbicki

Jonker

et al. 2014

Sci Rep

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“…4 Faraday effect attracts less attention than Kerr effect because it can only occur in ultra-thin films, where complexities of multiple reflections and discontinuous polarizations at the interfaces with the substrate arise. In contrast, magneto-optical Kerr effect (MOKE) is widely used as a powerful probe of the electronic and magnetic properties of materials, such as the domain wall, 5,6 surface plasma resonance, 7,8 magnetic anisotropy, 9,10 and topological insulator. 11,12 Band exchange splitting caused by magnetization together with relativistic spin-orbit coupling (SOC) has been recognized as the origin of MOKE.…”

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confidence: 99%

Large magneto-optical Kerr effect in noncollinear antiferromagnetsMn3X(X=Rh,Ir,Pt)

et al. 2015

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Magneto-optical Kerr effect, normally found in magnetic materials with nonzero magnetization such as ferromagnets and ferrimagnets, has been known for more than a century. Here, using first-principles density functional theory, we demonstrate large magneto-optical Kerr effect in high temperature noncollinear antiferromagnets Mn3X (X = Rh, Ir, or Pt), in contrast to usual wisdom. The calculated Kerr rotation angles are large, being comparable to that of transition metal magnets such as bcc Fe. The large Kerr rotation angles and ellipticities are found to originate from the lifting of the band double-degeneracy due to the absence of spatial symmetry in the Mn3X noncollinear antiferromagnets which together with the time-reversal symmetry would preserve the Kramers theorem. Our results indicate that Mn3X would provide a rare material platform for exploration of subtle magneto-optical phenomena in noncollinear magnetic materials without net magnetization.

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“…For instance, the latter is accompanied by a significant phase shift of the second-harmonic response [22][23][24], which can be unambiguously detected in interference experiments. An interplay of the resonant phase shift with the interference of multiple nonlinear-optical sources can lead to a complex behavior of the SHG output in the vicinity of the SPP resonance [15,16,25].…”

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confidence: 98%

“…However, the corresponding change in the transmittance (angular contrast) is proportional to the gyration vector of BTIG and is therefore relatively small (about 0.1%-1%). In the nonlinear optics, the observed magneto-optical SPP-induced effects are rarely discussed along these lines [19,[22][23][24][25]42,43] due to the complexity of the nonlinear-optical output. However, the nonlinear counterpart of this effect together with large values of the asymmetry-driven SHG output modulation (up to 95%) indicates high prospects for nonlinear active magnetoplasmonics [43,44].…”

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confidence: 99%

Surface plasmon-driven second-harmonic generation asymmetry in anisotropic plasmonic crystals

Chekhov

Razdolski²,

Kirilyuk³

et al. 2016

Phys. Rev. B

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We report a strong angular asymmetry of optical second-harmonic generation (SHG) in plasmonic crystals formed by an Au grating on top of an anisotropic bismuth-thulium iron garnet (BTIG) film. We found that a weak anisotropy-driven angular SHG asymmetry of the crystalline BTIG is resonantly enhanced and reaches 95% as the surface plasmon polariton (SPP) is excited at the Au/BTIG interface. The asymmetry introduced by an interference of the odd and even (with respect to the angle of incidence) SHG fields is attributed to the anisotropy of the BTIG film. The angular SHG spectra are reproduced using a simple model with a resonant SPP-induced SHG contribution from the anisotropic Au/BTIG interface. The observed asymmetry of the SHG provides valuable insight into the mechanisms of nonlinear plasmonics and can noticeably expand its abilities regarding active light conversion and manipulation.

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Nonlocal nonlinear magneto-optical response of a magnetoplasmonic crystal

Cited by 28 publications

References 48 publications

Control of magnetic contrast with nonlinear magneto-plasmonics

Control of magnetic contrast with nonlinear magneto-plasmonics

Large magneto-optical Kerr effect in noncollinear antiferromagnetsMn3X(X=Rh,Ir,Pt)

Surface plasmon-driven second-harmonic generation asymmetry in anisotropic plasmonic crystals

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