131 citations · 1.2k across the 59 of their papers we have counts for
60 papers
Observation of symmetry breaking in time-varying scattering systems
Miguel Verde, David Globosits, Thomas F. Allard +5
From the Higgs mechanism to magnetic ordering, spontaneous symmetry breaking organizes physics across scales. Whether an analogous transition governs waves scattered by periodicall…
All-optically untangling light propagation through multimode fibres
Hlib Kupianskyi, Simon A. R. Horsley, David B. Phillips
When light propagates through a complex medium, such as a multimode optical fibre (MMF), the spatial information it carries is scrambled. In this work we experimentally demonstrate…
Generalising the Yagi-Uda Antenna: Designing Disordered Metamaterials to Manipulate Antenna Radiation
J. R. Capers, L. D. Stanfield, J. R. Sambles +4
Next generation microwave communications systems face several challenges, particularly from congested communications frequencies and complex propagation environments. Taking inspir…
The theory of electromagnetic line waves
S. A. R. Horsley, A. Dwivedi
Whereas electromagnetic surface waves are confined to a planar interface between two media, line waves exist at the one-dimensional interface between three materials. Here we deriv…
Enhanced entanglement in multi-bath spin-boson models
Charlie R. Hogg, Federico Cerisola, James D. Cresser +2
The spin-boson model usually considers a spin coupled to a single bosonic bath. However, some physical situations require coupling of the spin to multiple environments. For example…
Time varying gratings model Hawking radiation
Simon A. R. Horsley, John B. Pendry
Diffraction gratings synthetically moving at trans-luminal velocities contain points where wave and grating velocities are equal. We show these points can be understood as a series…
Graph theory approach to exceptional points in wave scattering
Stefano Scali, Janet Anders, Simon A. R. Horsley
In this paper, we use graph theory to solve wave scattering problems in the discrete dipole approximation. As a key result of this work, in the presence of active scatterers, we pr…
Threading light through dynamic complex media
Chaitanya K. Mididoddi, Christina Sharp, Philipp del Hougne +2
The scattering of light impacts sensing and communication technologies throughout the electromagnetic spectrum. Overcoming the effects of time-varying scattering media is particula…
High-dimensional spatial mode sorting and optical circuit design using multi-plane light conversion
Hlib Kupianskyi, Simon A. R. Horsley, David B. Phillips
Multi-plane light converters (MPLCs) are an emerging class of optical device capable of converting a set of input spatial light modes to a new target set of output modes. This oper…
Microwave Demonstration of Purcell Effect Enhanced Radiation Efficiency
L. D. Stanfield, A. W. Powell, S. A. R. Horsley +2
We experimentally demonstrate a Purcell effect-based design technique for improved impedance matching, and thus enhanced radiation efficiency from a small microwave emitter. Using…
Removing grazing incidence reflection with half-bound states and non-Hermitian systems
Dean A. Patient, Simon A. R. Horsley
Grazing incidence waves incident onto a surface will almost always be completely reflected. Here, we focus on removing reflection at grazing incidence, adopting the factorisation m…
Designing Metasurfaces to Manipulate Antenna Radiation
James R Capers, Stephen J Boyes, Alastair P Hibbins +1
Designer manipulation of light at the nanoscale is key to several next-generation technologies, from sensing to optical computing. One way to manipulate light is to design a materi…
Inverse Design in the Complex Plane: Manipulating Quasi-Normal Modes
James R Capers, Dean A Patient, Simon A R Horsley
Utilising the fact that the frequency response of a material can be decomposed into the quasi-normal modes supported by the system, we present two methods to directly manipulate th…
Designing Multi-functional Metamaterials
J. R. Capers, S. J. Boyes, A. P. Hibbins +1
The ability to design passive structures that perform different operations on different electromagnetic fields is key to many technologies, from beam-steering to optical computing.…
Quantum-classical correspondence in spin-boson equilibrium states at arbitrary coupling
Federico Cerisola, Marco Berritta, Stefano Scali +3
The equilibrium properties of nanoscale systems can deviate significantly from standard thermodynamics due to their coupling to an environment. For the generalised -angled spin-…
Tutorial: Macroscopic QED and vacuum forces
S. A. R. Horsley
This tutorial introduces the theory of macroscopic QED, where a Hamiltonian is found that represents the electromagnetic field interacting with a dispersive, dissipative material.…
Tutorial: Topology, waves, and the refractive index
S. A. R. Horsley
This tutorial is divided into two parts: the first examines the application of topology to problems in wave physics. The origins of the Chern number are reviewed, where it is shown…
Time modulated media with digital meta-atoms
S. A. R. Horsley
We develop the theory of acoustic wave propagation in a waveguide containing an array of time modulated digital meta-atoms, showing the equivalence between this array and a homogen…
Spatiotemporal refraction of light in an epsilon-near-zero ITO layer
Justus Bohn, Ting Shan Luk, Euan Hendry
When light travels through a medium in which the refractive index is rapidly changing with time, the light will undergo a shift in its frequency. Large frequency shifting effects h…
Superfluid Optomechanics with Phononic Nanostructures
S. Spence, Z. X. Koong, S. A. R. Horsley +1
In quantum optomechanics, finding materials and strategies to limit losses has been crucial to the progress of the field. Recently, superfluid 4He was proposed as a promising mecha…
Designing Collective Non-local Responses of Metasurfaces
J. R. Capers, S. J. Boyes, A. P. Hibbins +1
We propose a numerically efficient `adjoint' inverse design method to optimize a planar structure of dipole scatterers, to manipulate the radiation from an electric dipole emitter.…
Quantum Brownian Motion for Magnets
J. Anders, C. R. J. Sait, S. A. R. Horsley
Spin precession in magnetic materials is commonly modelled with the classical phenomenological Landau-Lifshitz-Gilbert (LLG) equation. Based on a quantized spin+environment Hamilto…
Memory effect assisted imaging through multimode optical fibres
Shuhui Li, Simon A. R. Horsley, Tomas Tyc +2
When light propagates through opaque material, the spatial information it holds becomes scrambled, but not necessarily lost. Two classes of techniques have emerged to recover this…
Tunable pseudo-magnetic fields for polaritons in strained metasurfaces
Charlie-Ray Mann, Simon A. R. Horsley, Eros Mariani
Artificial magnetic fields are revolutionizing our ability to manipulate neutral particles, by enabling the emulation of exotic phenomena once thought to be exclusive to charged pa…