World's Fastest Film Camera Developed

Posted: Apr 28 2017, 12:12pm CDT | by , in News | Latest Science News

 
World's Fastest Film Camera Developed
The new camera was developed for filming chemistry and physics occurring at extreme speeds. Credit: Image courtesy of Lund University
  • The world's fastest film camera: When light practically stands still

The technology experts have really done it this time. They are proud to present the speediest camera in the global village which literally causes light waves to freeze in their path.

There are high-speed cameras that can catch 100,000 images per second. Yet they are old hat by now. A group of researchers has constructed a camera that can catch upto five trillion images per second.

This is the fastest that a camera has caught images in the entire history of photography. This super camera will be able to capture moments in physics, chemistry, biology and biomedicine. Such images have never before been caught on film.

The technology has even managed to capture light photons as they travel the distance equal to the thickness of a sheet of paper. While this time lapse takes a single picosecond, on film it has been frozen so that the process proceeds at a rate that is a trillion times slower.

At present, high speed cameras catch images shot by shot in sequence. However, this baby uses an all-new algorithm. It catches several coded pictures in one single shot. These are then sorted into a video sequence later on.

You just expose whatever it is you are shooting to light in the form of laser flashes. Each light pulse is given a singular code. The object repels the light exposure which then merges into a single picture.

These sequences are separated using an encryption device. This camera is normally used by researchers who want to capture images of processes that take place quickly in nature and culture.

The rate is in picoseconds and femtoseconds. Actually, the number of femtoseconds in a single second are greater than the number of seconds in an average person’s lifetime. Many processes in nature such as conflagrations, plasma outbursts, blasts, brain waves in animals and chemical reactions all show fast movements.

Now the filming of these processes is very easy thanks to this super fast camera. This technology also has a place in industrial manufacturing. It is not just the fast speed of this camera which is its special feature.

It is the fact that this camera can catch some processes that otherwise would not have come to the notice of humans beings who are curious cultural creatures.

Take combustion which is a difficult process to study with the current cameras. Yet with this super camera, photographing it is a cinch. The technology in the background of this camera is termed FRAME (Frequency Recognition Algorithm for Multiple Exposures).

A German company has already developed a prototype device based on FRAME technology. So this new tech will be available for more people within an estimated two years time.

The details about FRAME are described in a paper titled "FRAME: femtosecond videography for atomic and molecular dynamics" that got published in the journal Light: Science & Applications.

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<a href="/latest_stories/all/all/20" rel="author">Sumayah Aamir</a>
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