Dyakonov surface magnons and magnon polaritons

Hao, Shaopeng; Fu, Shufang; Zhou, Sheng; Wang, Xuan-Zhang

doi:10.1103/physrevb.104.045407

Cited by 14 publications

(10 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We propose that a DSMP with wavevector k propagates along the z-axis. This mode is an extension of that in our previous work [31].…”

Section: Theory Model and Dispersion Relationsupporting

confidence: 78%

“…Unlike the hexagonal boron nitride crystal (hBN) [29,30], the hyperbolicity of the AF originates from its magnetic permeability tensor with opposite-sign principal values. Recently, we predicted Dyakonov surface magnon and magnon polaritons at the AF surface in the absence of external magnetic field, where the AF was assumed to be a semi-infinite crystal and two completely different modes were found [31]. However, the semi-infinite AF is the limit of corresponding thick AF film and it is available only in the case where the decaying constants of surface modes are much larger than the inverse of film thickness.…”

Section: Introductionmentioning

confidence: 99%

“…In these references, the material anisotropy is reflected in the expression of the material permittivity. However, the AF anisotropy is reflected in the expression of the AF permeability [31]. Both the anisotropic permittivity and permeability can be expressed as the diagonal tensors, merely the permittivity represents the response of material to electric field and the permeability shows the response of material to magnetic field.…”

Section: Introductionmentioning

confidence: 99%

“…For a finite-thickness AF film, surface polaritons localized at the upper surface and lower surface of the film certainly couple with together to form new surface polaritons that are dependent on the film thickness. In the Recently, insulative AFs attracted more and more attention due to their hyperbolicity and supporting low-loss and field-tunable surface magnon polaritons [31][32][33][34][35], and they also support extraordinary spatial shifts and spin-splitting of reflective light beam [36,37].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Dyakonov surface polaritons in antiferromagnet film

Hao

Song

et al. 2023

Phys. Scr.

Self Cite

View full text Add to dashboard Cite

Dyakonov surface polaritons (DSPs) in a single antiferromagnetic (AF) film are investigated in the parallel geometry where the AF anisotropic axis is parallel to the film and no external magnetic field is applied. The analytical dispersion relation is obtained and four surface modes are found, among which one symmetric mode and an anti-symmetric mode are exist in the AF reststrahlen frequency band, and another symmetric and anti-symmetric modes are situated out the reststrahlen band. The existence of symmetric and anti-symmetric modes is caused by the mirror symmetry and finite thickness of the AF film. A pair of modes in the band have magnetostatic limits but the other pair out the band do not. The dispersion properties, field and energy-flux density distributions of each DSP are numerically calculated based on the FeF2 film for various propagating directions and film thicknesses. It is very interesting that the energy flux of each DSP can seriously deviates from its propagation direction, and the largest walk-off angle can reach 200˚.In addition, we briefly discuss dispersion properties of Dyakonov odd and even guided modes, they also are symmetric and antisymmetric and have multiple solutions.

show abstract

“…We propose that a DSMP with wavevector k propagates along the z-axis. This mode is an extension of that in our previous work [31].…”

Section: Theory Model and Dispersion Relationsupporting

confidence: 78%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Dyakonov surface polaritons in antiferromagnet film

Hao

Song

et al. 2023

Phys. Scr.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Transfer‐matrix method (TMM) is used to solve EM equations in a multilayer system subject to a uniform incident field. [ 65,66 ] The field in the medium is divided into two components, the forward (transmitted) component and the backward (reflected) component. The amplitudes of the field across an interface (say from material A to B ) are related by the Fresnel transmission (

t_{\text{AB}}

) and reflection coefficient (

r_{\text{AB}}

).…”

Section: Physics‐based Modelmentioning

confidence: 99%

Physics‐Informed Machine Learning for Inverse Design of Optical Metamaterials

Sarkar,

Ji,

Jermain

et al. 2023

Advanced Photonics Research

View full text Add to dashboard Cite

Optical metamaterials manipulate light through various confinement and scattering processes, offering unique advantages like high performance, small form factor and easy integration with semiconductor devices. However, designing metasurfaces with suitable optical responses for complex metamaterial systems remains challenging due to the exponentially growing computation cost and the ill‐posed nature of inverse problems. To expedite the computation for the inverse design of metasurfaces, a physics‐informed deep learning (DL) framework is used. A tandem DL architecture with physics‐based learning is used to select designs that are scientifically consistent, have low error in design prediction, and accurate reconstruction of optical responses. The authors focus on the inverse design of a representative plasmonic device and consider the prediction of design for the optical response of a single wavelength incident or a spectrum of wavelength in the visible light range. The physics‐based constraint is derived from solving the electromagnetic wave equations for a simplified homogenized model. The model converges with an accuracy up to 97% for inverse design prediction with the optical response for the visible light spectrum as input, and up to 96% for optical response of single wavelength of light as input, with optical response reconstruction accuracy of 99%.

show abstract

Dyakonov surface polaritons in graphene-covered hyperbolic crystals

Zhang

Wang

2022

J Opt

View full text Add to dashboard Cite

Dyakonov surface magnons and magnon polaritons

Cited by 14 publications

References 23 publications

Dyakonov surface polaritons in antiferromagnet film

Dyakonov surface polaritons in antiferromagnet film

Physics‐Informed Machine Learning for Inverse Design of Optical Metamaterials

Dyakonov surface polaritons in graphene-covered hyperbolic crystals

Contact Info

Product

Resources

About