119 citations · 156 across the 12 of their papers we have counts for
13 papers
Competing Auger-Like and Intraband Excitations Drive Anomalous Modulations in Indium Tin Oxide
Anthony C Harwood, Sean Z J Lim, T V Raziman +7
Transparent conducting oxides near their epsilon-near-zero frequency exhibit near-unity ultrafast modulations of the refractive index which have enabled the field of time-varying m…
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.…
Pulse-driven photonic transitions and nonreciprocity in space-time modulated metasurfaces
Zeki Hayran, John B. Pendry, Prasad P. Iyer +1
Time-varying photonic systems open new possibilities for controlling light, enabling photonic time crystals, time reflection and refraction, frequency conversion, synthetic gauge f…
Space-time refraction of space-time wave packets
Zeki Hayran, John B. Pendry
Space-time modulation of refractive index can produce synthetically moving interfaces with arbitrary apparent velocities, including superluminal motion, offering new ways to contro…
Chirality-driven all-optical image differentiation
Stefanos Fr. Koufidis, Zeki Hayran, Francesco Monticone +2
Optical analog computing enables powerful functionalities, including spatial differentiation, image processing, and ultrafast linear operations. Yet, most existing approaches rely…
An avalanche model for femtosecond optical response
J. B. Pendry
Experiments on Indium Tin Oxide (ITO) have revealed that a relatively broad 200THz pump pulse, roughly 30 cycles in width, can switch ITO from a transparent to a reflecting state w…
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…
Particle-hole instabilities in photonic time-varying systems
João C. Serra, Emanuele Galiffi, Paloma A. Huidobro +2
Photonic systems with time-varying modulations have attracted considerable attention as they allow for the design of non-reciprocal devices without the need for an external magneti…
Stable-to-unstable transition in quantum friction
Daigo Oue, J. B. Pendry, Mário G. Silveirinha
We investigate the frictional force arising from quantum fluctuations when two dissipative metallic plates are set in a shear motion. While early studies showed that the electromag…
Second harmonic generation at a time-varying interface
Romain Tirole, Stefano Vezzoli, Dhruv Saxena +6
Time-varying metamaterials rely on large and fast changes of the linear permittivity. Beyond the linear terms, however, the effect of a non-perturbative modulation of the medium on…
Crossing the light line
J. B. Pendry, P. A. Huidobro, M. G. Silveirinha +1
We ask the question 'what happens to Bloch waves in gratings synthetically moving at near the speed of light?'. First we define a constant refractive index (CRI) model in which Blo…
Homogenisation Theory of Space-Time Metamaterials
Paloma Arroyo Huidobro, Mario G. Silveirinha, Emanuele Galiffi +1
We present a general framework for the homogenisation theory of space-time metamaterials. By mapping to a frame co-moving with the space-time modulation, we derive analytical formu…
Bianisotropy and magnetism in plasmonic gratings
Matthias Kraft, Avi Braun, Yu Luo +2
We present a simple design to achieve bianisotropy at visible wavelengths: an ultrathin plasmonic grating made of a gold grating covered by a thin flat layer of gold. We show exper…