Core-Shell Particles as Building Blocks for Systems with High Duality Symmetry
@article{Rahimzadegan2017CoreShellPA, 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={2017} }
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
- 2019
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
- 2020
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
- 2020
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
- Physics, MathematicsLaser & Photonics Reviews
- 2021
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
- 2019
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…
References
SHOWING 1-10 OF 58 REFERENCES
Role of duality symmetry in transformation optics
- Physics
- 2013
Maxwell's equations in curved space-time are invariant under electromagnetic duality transformations. We exploit this property to constraint the design parameters of metamaterials used for…
Objects of maximum electromagnetic chirality
- Computer Science
- 2015
Theoretical requirements for objects of maximum electromagnetic chirality are provided and a twofold resonantly enhanced and background-free circular dichroism measurement setup, and angle-independent helicity filtering glasses are outlined.
Photonic topological insulators.
- PhysicsNature materials
- 2013
It is shown that metacrystals-superlattices of metamaterials with judiciously designed properties-provide a platform for designing topologically non-trivial photonic states, similar to those identified for condensed-matter topological insulators.
Dual and Chiral Objects for Optical Activity in General Scattering Directions
- Physics
- 2015
Optically active artificial structures have attracted tremendous research attention. Such structures must meet two requirements: Lack of spatial inversion symmetries and, a condition usually not…
Broadband suppression of backscattering at optical frequencies using low permittivity dielectric spheres
- PhysicsScientific Reports
- 2017
Wavelength-sized spheres made from low permittivity materials are put forward, which occur in a parameter regime where approximate duality is met for all multipolar order an ≈ bn, in a weakly wavelength dependence fashion.
Optical force and torque on dipolar dual chiral particles
- Physics
- 2016
On the one hand, electromagnetic dual particles preserve the helicity of light upon interaction. On the other hand, chiral particles respond differently to light of opposite helicity. These two…
P·T·Dsymmetry-protected scattering anomaly in optics
- Physics
- 2017
In time-reversal invariant electronic systems the scattering matrix is anti-symmetric. This property enables an effect, designated here as "scattering anomaly", such that the electron transport does…
Dual and anti-dual modes in dielectric spheres.
- PhysicsOptics express
- 2013
We present how the angular momentum of light can play an important role to induce a dual or anti-dual behaviour on a dielectric particle. Although the material the particle is made of is not dual,…
Bottom-up fabrication and optical characterization of dense films of meta-atoms made of core-shell plasmonic nanoparticles.
- PhysicsLangmuir : the ACS journal of surfaces and colloids
- 2013
An attempt to fabricate low index metamaterials by a bottom-up approach, meta-atoms constituted of silica-coated silver nanoparticles are assembled by a Langmuir-Schaefer technique and may constitute a good model for numerical simulations.
Duality symmetry and Kerker conditions.
- MathematicsOptics letters
- 2013
These conditions can be applied to any particle with cylindrical symmetry, not only to spherical particles as the original Kerker conditions were derived for, and find applications in the field of metamaterials, where new materials with directional scattering are being explored.