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This paper reports the engineering of large area cellular solids with controllable stiffness and specific strengths up to 230 MPa/(Mg/m3), which is stronger than most high strength alloys including 4143 steel and Ti-6Al-4V. The high strength arises from the size-based strengthening of the nm-sized struts. The cellular solid's porosity can be varied from 30 to 90% to control the specific stiffness...
Photonic crystals provide unprecedented control over light emission, absorption and propagation, which has led to the proposal of a large variety of optoelectronic devices. Three-dimensional devices with electronic functionality have however remained elusive, as fabrication of three-dimensional, electrically active nanostructured materials remains complex. Numerous techniques have been demonstrated...
We demonstrate the use of a genetic algorithm based inverse design technique to target and fabricate helical structures via PnP. We furthermore show their inversion into other functional materials and their application as chiral metamaterials.
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