Researchers at Lund University have just revealed the fastest high-speed camera ever developed that can capture the equivalent of an astonishing five trillion frames every second, fast enough to capture the movement of light.
The new super-fast film camera will be able to capture incredibly rapid processes in chemistry, physics and biology, that so far have not been caught on film.
How it Works
The researchers call the technology FRAME – Frequency Recognition Algorithm for Multiple Exposures.
Publishing their findings in Light: Science and Applications, the method involves usage of “coded” light flashes, as a form of encryption. Every time a coded light flash hits the object – for example, a chemical reaction in a burning flame – the object emits an image signal (response) with the exact same coding. The following light flashes all have different codes, and the image signals are captured in one single photograph. These coded image signals are subsequently separated using an encryption key on the computer.
Using this method, which required complicated laboratory equipment consisting of mirrors and lenses, the researchers could film events as short as 0.2 trillionths of a second, the fastest ever possible. This is fast enough to actually visualize the movement of light.
You can see this in the video below, which shows the movement of light in femtoseconds – one millionth of a billionth of a second – across the equivalent distance of a thickness of paper.
Source : Lund Unversity