The future is laden with stretchable circuits to pave the way for better wearable tech. It was at first hard to create, but in under two years, scientists have nailed the stretchable electronic circuitry. Now, Belgian researchers have come up with a flexible light circuit that can carry light signals, even when stretched.

In a paper published in Optics Express, researchers say they have built the first stretchy optical waveguide using a sandwich of flexible polydimethylsiloxane (PDMS).

The material uses a transparent, light carrying core of PDMS surrounded by a less-refractive layer of the same material. It will continue to carry light signals even when stretched 30% beyond its resting length or wrapped around your finger.

Imagine the applications for this!  [Optics Express via PhysOrg]