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Flexible Metamaterials

Flexible Metamaterials

“Invisibility” cloaking devices already exist in the lab, but only with such restrictive conditions that they are not very useful. Restrictions in the range of effective optical frequencies and the size and structure of the cloaking materials leave a large gap between laboratory performance and a functional cloaking device. A new flexible form of metamaterial is shrinking that gap.

Flexible metamaterial springs to life – [physicsworld.com]

Physicists in the UK have made a new kind of flexible material that could enclose objects to render them and it invisible. Although unlikely to be of much use when it comes to shielding people and other large objects, it could, say the researchers, nevertheless hide small items and make contact lenses more powerful.

Flexible metamaterials the key to a working invisibility cloak? – [gizmag.com]

Scottish researchers are reporting a “practical breakthrough” that could lead to the development of that most sought after of wardrobe items – the invisibility cloak. The concept of the invisibility cloak (not pictured) is based around harnessing the unique electromagnetic wave-bending properties of metamaterials, but this poses problems when it comes to creating flexible surfaces suitable for applications like clothing and contact superlenses for visual prostheses… problems which the new material design known as “Metaflex” hopes to address.

Flexible metamaterials at visible wavelengths – [iop.org]

We have fabricated and characterized plasmonic nano-structures that were realized on flexible polymeric substrates. We studied both nanoantennas with varying geometrical parameters and fishnet structures, and demonstrated their operation in the NIR and the visible wavelength range, respectively. The experimental curves agreed well with the numerical calculations. These results confirm that it is possible to realize MMs on flexible substrates and operating in the visible regime, which we believe are ideal building blocks for future generations of three-dimensional flexible MMs at optical wavelengths.

Naked Clothes
Singing Optical Sensor Fibers

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