Laser vision, closer to the human eye


Laser vision, closer to the human eye



Researchers create an ultra-thin membrane whose success has been demonstrated in animals



    Shooting lasers with your eyes is not just a Hollywood trick. An investigation of the University of St. Andrew in the United States has made it possible to create an ultrafine membrane laser using organic semiconductors.

The tests, for the time being, have only been taken to the animal world. In particular, they have been tested in the eyes of cows and this membrane has been shown to show lines on a flat bottom or ones and zeros creating a digital bar code.

"Our work represents a new milestone in the development of lasers and, in particular, points the way to how lasers can be used in inherently soft and ductile environments, either in portable sensors or as an authentication function in banknotes" , explains Professor Malte Gather, one of researchers at the University of St Andrew.

"By varying the materials and adjusting the laser grid structures, the emission can be designed to show a specific series of lines defined on a flat background, the ones and zeros of a digital bar code," adds Markus Karl.

This technology will not have, for the moment, the capabilities that the Hollywood productions have given it, although it will allow the creation of applicable identification labels, thanks to its thinness and flexibility, in bills or documents.

Flexible organic optoelectronics, in particular for displays, photovoltaic systems and portable sensors, is on the verge of large scale commercialization, with prototypes of devices that already achieve amazing curvatures.

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