To understand the mechanism of some ultra-fast processes, scientists need ultra-high-speed video cameras that perform slow motion. The performance of most of them is limited to about 100 thousand frames per second. Now a camera has been created that shoots 15 million times faster. She is capable of capturing even the movement of light.
The last world record belonged to the apparatus created at the University of Tokyo - 4.4 trillion. frames / sec. However, this record was also surpassed by researchers at Lund University, who developed an ultra-high-speed camera with a performance of 5 trillion frames per second. In other words, she is capable of filming an event lasting only 0.2 trillion. fractions of a second.
According to one of the leading specialists of the project, Elias Kristensson, we are talking about the processes occurring in the picosecond and femtosecond ranges, in particular, during explosions, plasma flares, ultra-high-speed combustion during chemical reactions.
The technology is not about capturing 5 trillion individual frames every second. Instead, the camera captures several images at once in one frame by illuminating the object with a series of ultra-short light laser pulses, encoded with a specific code. Then, using the "encryption key", a special algorithm can extract the complete sequence.