4 papers
Switchable selective backscatter modulation via the Kerker effect
K. J. Cowan, C. M. Hooper, C. P. Gallagher +3
We design a reflective scatterer that operates only in the backscatter direction using modulation of the Kerker effect. This being a phenomena where the resonant modes of a scatter…
Finding passive, reciprocal metasurfaces for arbitrary wave transformations
K. O. Arnold, C. Hooper, J. Smith +4
We give a general design method for finding the passive, reciprocal surface impedance tensor required to enact any wave transformation. We do this through characterising the surfac…
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…
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…