# Core-Shell Particles as Building Blocks for Systems with High Duality Symmetry

@article{Rahimzadegan2018CoreShellPA, title={Core-Shell Particles as Building Blocks for Systems with High Duality Symmetry}, author={Aso Rahimzadegan and Carsten Rockstuhl and Ivan Fernandez‐Corbaton}, journal={Physical Review Applied}, year={2018} }

Material electromagnetic duality symmetry requires a system to have equal electric and magnetic responses. Electromagnetic duality enables technologically important effects like artificial optical activity and zero back-scattering, is a requirement for metamaterials in transformation optics, Huygens wave-front control, and maximal electromagnetic chirality, and appears in topological photonic systems. Intrinsically dual materials that meet the duality conditions at the level of the constitutive…

## 17 Citations

### Experimental demonstration of spectrally broadband Huygens sources using low-index spheres

- PhysicsAPL Photonics
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Manipulating the excitation of resonant electric and magnetic multipole moments in structured dielectric media has unlocked many sophisticated electromagnetic functionalities. This invited article…

### Scattering invariance for arbitrary polarizations protected by joint spatial-duality symmetries

- Mathematics
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We reveal how to exploit joint spatial-electromagnetic duality symmetries to obtain invariant scattering properties (including extinction, scattering, absorption) of self-dual scattering systems for…

### Scattering and absorption invariance of nonmagnetic particles under duality transformations

- Mathematics
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We revisit the total scatterings (in terms of extinction, scattering, and absorption cross sections) by arbitrary clusters of nonmagnetic particles that support optically induced magnetic responses.…

### Symmetry Protected Invariant Scattering Properties for Incident Plane Waves of Arbitrary Polarizations

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Polarization independent Mie scattering of building blocks is fundamental for constructions of optical systems with robust functionalities. Conventional studies for such polarization independence are…

### Beyond dipolar Huygens’ metasurfaces for full-phase coverage and unity transmittance

- PhysicsNanophotonics
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Abstract Metasurfaces made from densely packed resonant wavelength-scale particles enable abrupt modulation of impinging electromagnetic radiation within an ultrathin surface. Combining duality…

### Symmetry Protected Invariant Scattering Properties for Arbitrary Polarizations

- Physics
- 2020

Polarization independent Mie scattering of building blocks is foundational for constructions of optical systems with robust functionalities. Conventional studies for such polarization independence…

### Minimalist Mie coefficient model.

- MathematicsOptics express
- 2020

This work presents here, for the first time to the authors' knowledge, corresponding expressions for spheres made from absorbing materials and investigates the upper bound for the absorption cross section of a trimer made from electric dipolar spheres.

### Minimalist Mie coefficient model

- Physics
- 2020

When considering light scattering from a sphere, the ratios between the expansion coefficients of the scattered and the incident field in a spherical basis are known as the Mie coefficients.…

### Insights into Backscattering Suppression in Solar Cells from the Helicity-Preservation Point of View

- PhysicsPhysical Review Applied
- 2019

Suppressing the reflection from material interfaces or entire layer stacks across an extended spectral range is important for various applications. While many approaches have been described for this…

### Core-shell nanospheres under visible light: Optimal absorption, scattering, and cloaking

- Materials SciencePhysical Review B
- 2019

Discovering peak-performing components, under certain structural and material constraints, is vital for the efficient operation of integrated systems that incorporate them. This becomes feasible by…

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