Researchers In Australia Develop Invisible Data Transmission Using Heat Radiation

 SYDNEY, March 9 (Bernama-Xinhua) -- Researchers in Australia have developed an "invisible" communication system that hides data transmission within natural heat radiation, Xinhua reported.

Using a phenomenon known as "negative luminescence," the system works by making signals blend perfectly into the background of natural heat radiation, such as seen with a thermal camera, said a statement from Australia's University of New South Wales (UNSW) on Monday.

To outside observers, it looks like no data is being sent at all. Only a receiver with the right equipment can pick up the hidden message, the statement said.

Because the transmission itself is invisible, interception is almost impossible, offering applications in secure finance communications, it said.

The process uses the special effect of negative luminescence from mid-infrared LEDs via a thermoradiative diode, the study showed.

The research team has achieved 100 kilobytes per second in lab tests, but expects gigabyte speeds with improved emitters.

--BERNAMA-XINHUA