Metamaterials are not minerals extracted from the earth, but artificial structures with characteristics and properties that nature overlooked and which they have acquired by design. Their secret lies not in chemistry, but in geometry — in microscopic patterns that alter the logic of the natural world.
Put another way, they are artificial materials that display unusual electromagnetic or mechanical properties as a consequence of the structure with which they have been designed, not their composition. Their properties, in fact, differ from those of their constituents, and are characterised by their ability to manipulate waves — light, sound, vibration — in ways that seem almost illicit.
Some possess a negative refractive index, bending light the ´wrong’ way. Others can guide it around an object to render it invisible. Certain acoustic metamaterials trap noise within structural labyrinths, creating oases of silence. They are materials that edit physical reality.
Their applications spread like ink in water: tiny yet powerful aerials, superlenses that reveal the secret life of cells, seismic shields that deflect the earth’s fury. They are answers to questions we did not even know we could ask.
By Manolo Barberá, Senior Hydraulic Modeller in the Architecture Department at Amusement Logic
