51 citations · 56 across the 15 of their papers we have counts for
15 papers
Minimum energy and photon content in PT symmetric metamaterials
J. B. Pendry, S. A. R. Horsley
In the context of waves in space time modulated materials, we ask two questions how much energy does it cost to break time reversal symmetry and transition to a PT symmetric state.…
Generalized Time-Varying Drude Model for Dispersive and Lossy Modulations
Antonio Ganfornina-Andrades, J. Enrique Vázquez-Lozano, Iñigo Liberal +1
We develop a generalization of the time-varying Drude model, treating carrier density, effective mass, and collision rate as explicit functions of time. We derive expressions for p…
Scattering in Time-Varying Drude-Lorentz Models
Bryce Dixon, Calvin M. Hooper, Ian R. Hooper +1
Motivated by recent experiments, the theoretical study of wave propagation in time varying materials is of current interest. Although significant in nearly all such experiments, ma…
Coherent absorption reveals colors hidden in a grey Fabry-Pérot cavity
Giuseppe E. Lio, Giulio Carotta, Lorenzo Lavista +8
Thin dielectric films are known to show distinct colors, responsible for the iridescence of various natural and artificial objects such as insect wings and soap bubbles. In the pre…
Quasi Normal Modes in Dispersive Photonic Time-Crystals
Calvin M. Hooper, Ian R. Hooper, Simon A. R. Horsley
Quasinormal modes characterise the transient response of static optical cavities. Here, we introduce the notion of a Floquet quasinormal mode to describe transient responses in pho…
Electromagnetic Boundary Conditions for Space--time Interfaces
Jonathan Gratus, Simon A. R. Horsley, Martin W. McCall
We give a general family of electromagnetic boundary conditions applicable to arbitrary space--time interfaces between electromagnetic media, which include the known space--only an…
Effects due to generation of negative frequencies during temporal diffraction
E. Hendry, C. M. Hooper, W. P. Wardley +1
Temporal diffraction from rapidly time-modulated materials can generate new frequency components not present in an incident wave. In such an experiment, the spectral extent of thes…
Calculating propagators for relativistic wave equations
Mingjie Li, S. A. R. Horsley
Here we examine the propagation of relativistic fields in spacetime using the viewpoint applied to derive the Rayleigh--Sommerfeld diffraction integral in three--dimensional space.…
Symmetry-Protected Lossless Modes in Dispersive Time-Varying Media
Calvin M. Hooper, James R. Capers, Ian R. Hooper +1
We give an exact application of a recently developed, operator-based theory of wave propagation in dispersive, time-varying media. Using this theory we find that the usual symmetry…
Macroscopic QED and noise currents in time-varying media
S. A. R. Horsley, R. K. Baker
Macroscopic QED (MQED) is the field theory for computing quantum electromagnetic effects in dispersive media. Here we extend MQD to treat time-varying, dispersive media. For a time…
Space-Time Optical Diffraction from Synthetic Motion
A. C. Harwood, S. Vezzoli, T. V. Raziman +7
The interaction of light with objects and media moving at relativistic and superluminal speeds enables unconventional phenomena such as Fresnel drag, Hawking radiation, and light a…
Moving impedance profiles make one--way, spectrum--reshaping mirrors
Mingjie Li, S. A. R. Horsley
We find a new set of exact solutions to Maxwell's equations in space--time varying materials, where the refractive index is constant, while the impedance exhibits effective motion,…
Travelling wave amplification in stationary gratings
S. A. R. Horsley, J. B. Pendry
We show that a grating amplitude stationary in space but oscillating in time can be accurately modelled as a set of independent gratings travelling in opposite directions, interact…
The Electronic and Electromagnetic Dirac Equations
Mingjie Li, S. A. R. Horsley
Maxwell's equations and the Dirac equation are the first-order differential relativistic wave equation for electromagnetic waves and electronic waves respectively. Hence, there is…
Eigenpulses of dispersive time-varying media
S. A. R. Horsley, E. Galiffi, Y. -T. Wang
We develop a compact theory that can be applied to a variety of time-varying dispersive materials. The continuous wave reflection and transmission coefficients are replaced with eq…