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…
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…
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…
On-Demand Activation of Photochromic Nanoheaters for High Color Purity 3D Printing
Alexander W. Powell, Alexandros Stavrinadis, Sotirios Christodoulou +2
The creation of white and multicoloured 3D-printed objects with high colour fidelity via powder sintering processes is currently limited by discolouration from thermal sensitizers…