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Disordered Optical Metasurfaces: Basics, Properties, and Applications
P. Lalanne, M Chen, C. Rockstuhl +3
Optical metasurfaces are conventionally viewed as organized flat arrays of photonic or plasmonic nanoresonators, also called metaatoms. These metasurfaces are typically highly orde…
A Multi-Scale Approach to Simulate the Nonlinear Optical Response of Molecular Nanomaterials
Benedikt Zerulla, Dominik Beutel, Christof Holzer +3
Nonlinear optics is essential for many recent photonic technologies. Here, we introduce a novel multi-scale approach to simulate the nonlinear optical response of molecular nanomat…
Inverse Design of All-dielectric Metasurfaces with Bound States in the Continuum
Sergei Gladyshev, Theodosios D. Karamanos, Lina Kuhn +4
Metasurfaces with bound states in the continuum (BICs) have proven to be a powerful platform for drastically enhancing light-matter interactions, improving biosensing, and precisel…
Identifying regions of minimal back-scattering by a relativistically-moving sphere
Mitchell R. Whittam, Aristeidis G. Lamprianidis, Yannick Augenstein +1
The far-field back-scattering amplitude of an electric field from a relativistically-moving sphere is analyzed. Contrary to prior research, we do so by expressing the fields in the…
A T-matrix Based Approach to Homogenize Artificial Materials
Benedikt Zerulla, Ramakrishna Venkitakrishnan, Dominik Beutel +4
The accurate and efficient computation of the electromagnetic response of objects made from artificial materials is crucial for designing photonic functionalities and interpreting…
Lattice Sums Accommodating Multiple Sublattices for Solutions of the Helmholtz Equation in Two and Three Dimensions
Dominik Beutel, Ivan Fernandez-Corbaton, Carsten Rockstuhl
The evaluation of the interaction between objects arranged on a lattice requires the computation of lattice sums. A scenario frequently encountered are systems governed by the Helm…
Transformation-optics modeling of 3D-printed freeform waveguides
Aleksandar Nesic, Matthias Blaicher, Emilio Orlandini +10
Multi-photon lithography allows to complement planar photonic integrated circuits (PIC) by in-situ 3D-printed freeform waveguide structures. However, design and optimization of suc…
A Comprehensive Multipolar Theory for Periodic Metasurfaces
Aso Rahimzadegan, Theodosios D. Karamanos, Rasoul Alaee +4
Optical metasurfaces consist of a 2D arrangement of scatterers, and they control the amplitude, phase, and polarization of an incidence field on demand. Optical metasurfaces are th…
The annual energy yield of mono- and bifacial silicon heterojunction solar modules with high-index dielectric nanodisk arrays as anti-reflective and light trapping structures
Evgeniia Slivina, Derk Bätzner, Raphael Schmager +5
While various nanophotonic structures applicable to relatively thin crystalline silicon-based solar cells were proposed to ensure effective light in-coupling and light trapping in…
Tailored Light Scattering through Hyperuniform Disorder in self-organized arrays of high-index Nanodisks
Peter M. Piechulla, Bodo Fuhrmann, Evgeniia Slivina +3
Arrays of nanoparticles exploited in light scattering applications commonly only feature either a periodic or a rather random arrangement of its constituents. For the periodic case…
On enhanced sensing of chiral molecules in optical cavities
Philip Scott, Xavier Garcia-Santiago, Dominik Beutel +3
The differential response of chiral molecules to incident left- and right- handed circularly polarized light is used for sensing the handedness of molecules. Currently, significant…
From single-particle-like to interaction-mediated plasmonic resonances in graphene nanoantennas
Marvin M. Müller, Miriam Kosik, Marta Pelc +4
Plasmonic nanostructures attract tremendous attention as they confine electromagnetic fields well below the diffraction limit while simultaneously sustaining extreme local field en…
Efficient simulation of bi-periodic, layered structures based on the T-matrix method
Dominik Beutel, Achim Groner, Carsten Rockstuhl +1
Predicting the optical response of macroscopic arrangements of individual scatterers is a computational challenge, as the problem involves length scales across multiple orders of m…
Directional coupling of emitters into waveguides: A symmetry perspective
Aristeidis G. Lamprianidis, Xavier Zambrana-Puyalto, Carsten Rockstuhl +1
Recent experiments demonstrated strongly directional coupling of light into waveguide modes. We identify here the mechanisms behind this effect. We consider emitters near a wavegui…
Superconducting nanowire single-photon spectrometer exploiting cascaded photonic crystal cavities
Youngsun Yun, Andreas Vetter, Robin Stegmueller +4
Superconducting nanowire single-photon detectors promise efficient (~100%) and fast (~Gcps) detection of light at the single-photon level. They constitute one of the building block…
Helicity-preserving optical cavity modes for enhanced sensing of chiral molecules
Joshua Feis, Dominik Beutel, Julian Köpfler +4
Researchers routinely sense molecules by their infrared vibrational "fingerprint" absorption resonances. In addition, the dominant handedness of chiral molecules can be detected by…
Enhancement of and interference among higher order multipole transitions in molecules near a plasmonic nanoantenna
Evgenia Rusak, Jakob Straubel, Piotr Gładysz +6
Spontaneous emission of quantum emitters can be modified by engineering their optical environment. This allows a resonant nanoantenna to significantly modify the radiative properti…
Second Quantization of Scattering Modes of Absorptive Photonic Nanostructures
Jens Oppermann, Jakob Straubel, Karolina Słowik +1
We present a quantization scheme for optical systems with absorptive losses, based on an expansion in the complete set of scattering solutions to Maxwell's equations. The natural e…
Achiral, Helicity Preserving, and Resonant Structures for Enhanced Sensing of Chiral Molecules
Florian Graf, Joshua Feis, Xavier Garcia-Santiago +3
We derive a set of design requirements that lead to structures suitable for molecular circular dichroism (CD) enhancement. Achirality of the structure and two suitably selected seq…
Perturbing beyond the shallow amplitude regime: Green's function scattering formalism with Bloch modes
A. Abass, A. Martins, S. Nanz +3
We present a Bloch modes' based Green's function scattering formalism for cost efficient forward modelling of disordered binary surface textures. The usage of Bloch modes of an unp…
Decomposition of scattered electromagnetic fields into vector spherical wave functions on surfaces with general shapes
Xavier Garcia-Santiago, Martin Hammerschmidt, Sven Burger +3
Decomposing the field scattered by an object into vector spherical harmonics (VSH) is the prime task when discussing its optical properties on more analytical grounds. Thus far, it…
Retrieving effective material parameters of metamaterials characterized by nonlocal constitutive relations
Karim Mnasri, Andrii Khrabustovskyi, Michael Plum +1
The parameter retrieval is a procedure in which effective material properties are assigned to a given metamaterial. A widely used technique bases on the inversion of reflection and…
Quantum plasmonic N00N state in a silver nanowire and its use for quantum sensing
Yang Chen, Changhyoup Lee, Liu Lu +9
The control of quantum states of light at the nanoscale has become possible in recent years with the use of plasmonics. Here, many types of nanophotonic devices and applications ha…
Surface Plasmon Polaritons Sustained at the Interface of a Nonlocal Metamaterial
Joshua Feis, Karim Mnasri, Andrii Khrabustovskyi +3
Studying basic physical effects sustained in metamaterials characterized by specific constitutive relation is a research topic with a long standing tradition. Besides intellectual…