Making smartphones smarter with see-through sensors
Your smartphone’s display glass could soon be more than just a pretty face, thanks to new technology developed by researchers from Montreal and the New York-based company Corning Incorporated. The team has created the first laser-written light-guiding systems that are efficient enough to be developed for commercial use. They describe their work in a paper published today in The Optical Society’s (OSA) open-access journal, Optics Express.
This revolutionary work could open up new real estate in the phone by embedding the glass with layer upon layer of sensors, including ones that could take your temperature, assess your blood sugar levels if you’re diabetic or even analyze DNA.
The researchers have used their new technology to build two completely transparent systems—a temperature sensor and a new system for authenticating a smartphone using infrared light—into a type of glass that’s currently used in most smartphones.
In addition to biomedical sensors, the technology could also eventually allow computing devices to be embedded into any glass surface, such as windows or tabletops, creating the transparent touchscreens seen in movies like Avatar and Iron Man, the researchers say.
“We’re opening the Pandora’s box at the moment,” says paper co-author Raman Kashyap, a professor of electrical engineering and engineering physics at Polytechnique Montreal in Canada. Now that the technique is viable, “it’s up to people to invent new uses” for it, he says.
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