Photorealistic modelling of metals from first principles

Abstract

The colours of metals have attracted the attention of humanity since ancient times, and coloured metals, in particular gold compounds, have been employed for tools and objects symbolizing the aesthetics of power. In this work we develop a comprehensive framework to obtain the reflectivity and colour of metals, and show that the trends in optical properties and the colours can be predicted by straightforward first-principles techniques based on standard approximations. We apply this to predict reflectivity and colour of several elemental metals and of different types of metallic compounds (intermetallics, solid solutions and heterogeneous alloys), considering mainly binary alloys based on noble metals. We validate the numerical approach through an extensive comparison with experimental data and the photorealistic rendering of known coloured metals.

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Cited by in corpus (6)

• The Bethe-Salpeter Equation Formalism: From Physics to Chemistry
• Photorealistic modelling of metals from first principles
• Ab initio study of the structural, vibrational and optical properties of potential parent structures of nitrogen-doped lutetium hydride
• Microscopic theory of colour in lutetium hydride
• Efficient full frequency GW for metals using a multipole approach for the dielectric screening
• Quantifying colors at micrometer scale by colorimetric microscopy (C-Microscopy) approach