Well, if you have never encounter what the f*** is metamaterial, then click here.
As you all know, polymer is substance that is made up by binding to molecules together to form a new material with new properties. A block copolymers on the other hand is the combination of two or more polymers. Now the two solid polymers will form geometric shapes with interconnected pattern that can be called as gyroid. More complex pattern or shapes can be achieved by using three polymers instead of just two.
Uli Wiesner from Wesner Lab, has shown how to create metamaterial by using chemistry. The process involves in using what is called block copolymers to assemble 3-D structure in nanoscale features.
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| Example of gyroid. |
As you all know, polymer is substance that is made up by binding to molecules together to form a new material with new properties. A block copolymers on the other hand is the combination of two or more polymers. Now the two solid polymers will form geometric shapes with interconnected pattern that can be called as gyroid. More complex pattern or shapes can be achieved by using three polymers instead of just two.
After this process, one of the polymers will be melted or dissolved, creating a hollow area which can be used to mold metal in nanoscale features, usually gold or silver. Now the gyroid consists of polymer and metal. The polymer is then burned, leaving the porous metal structure alone. Through all these process, Wiesner and his team researchers suggest that they can make the metal gyroid so that it can allow light to pass through.
Maybe next time, the invisibility cloak is invisible through naked eyes, not some cameras or computers.
Using this process, the team said it is possible to create a materials with negative refractive index which is essentially metamaterial. The team now is conducting computer simulations to create the correct pattern for metal gyroid to be able to pass the light and have a negative refractive index in visible and near-infrared range. With this achievement, the world may be able to see cloaking device as has been seen in Star Trek or Harry Potter.
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