Mark Spencer

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External driving is emerging as a promising tool for exploring new phases in quantum systems. The intrinsically non-equilibrium states that result, however, are challenging to describe and control. We study the steady states of a periodically driven one-dimensional electronic system, including the effects of radiative recombination, electron-phonon(More)
High Concentration Photovoltaic (HCPV) power sources must compete with established energy sources such as fossil fuel or nuclear power, and must be as reliable and cost effective as other energy sources. HCPV manufacturers must address issues of technology viability, unique design requirements, immature manufacturing processes, quality control, and the(More)
Robust tools are needed to prioritise the management of invasive non-native species (INNS). Risk assessment is commonly used to prioritise INNS, but fails to take into account the feasibility of management. Risk management provides a structured evaluation of management options, but has received little attention to date. We present a risk management scheme(More)
A general far-field wave propagation scaling law is developed. The formulation is simple but predicts diffraction peak irradiance accurately in the far field, regardless of the near-field beam type or geometry, including laser arrays. We also introduce the concept of the equivalent uniform circular beam that generates a far-field peak irradiance and(More)
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