Scientists Create Laser-Shooting Contact Lenses
Researchers at the University of St. Andrews in Scotland have created laser-shooting contact lenses.
The ultra-thin membrane laser can be placed on the eye and shines a green beam 20 inches away.
Researchers say the lasers can be used as a wearable security tag, could help spot counterfeit banknotes, and aid in a medical context.
“By floating a thin plastic film off a substrate we have made some of the world’s smallest and lightest lasers and put them on contact lenses and bank notes,” said Ifor Samuel, a professor at the university’s School of Physics and Astronomy.
The study was published in the journal Nature Communications.