With a Powerful Laser They İnvented, The Scientists “Burned The Air” To Create Patterns İn The Air
“With the brand new device, we can draw in the air without using paper and ink.”
A team based in Wuhan drew Chinese letters in the air by burning the air with a laser. Patterns are seen in the air from all angles and can be physically touched. This invention; It works with ultra-short laser pulses, separating electrons from air molecules and converting them to light.
Researchers, this technology; They hope it could be applied in a variety of fields, from brain imaging to quantum computing.
“With the brand new device, we can draw in the air without using paper and ink,” Cao Xiangdong, chief scientist at Hongtuo Ultra-Speed Laser Laboratory in the optical valley of Wuhan, told Science and Technology Daily.
“The display is a culmination of more than a decade of research,” he added.
Screens are created using pulses lasting just a few femtoseconds, which is equivalent to a quadrillionth of a second or a millionth of a billionth.
But they need a million megawatts of power to repel.
The energy density required to convert air into light is roughly one trillion watts per square centimeter.
The launch of the laser comes just weeks after Chinese President Xi Jinping visited laser companies in Wuhan as part of his plans to strengthen high-tech industries in the country.
During the trip, President Xi called the development of such technologies a matter of “great urgency”, emphasizing the need for scientific and technological self-confidence.