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High-speed camera 4,8 million frames per second

19.09.2023

Canadian scientists have unveiled an innovative video camera capable of recording images at several million frames per second at high spatial resolution. This device is much cheaper than existing analogues.

Researchers from the University of Quebec have presented a new imaging method that does not require sacrificing temporal or spatial resolution to achieve high frame rates.

Their method is based on the fact that light has the properties of both waves and particles. They used a diffraction grating to split the incident light into individual frames. The scientists created a high-speed camera prototype using readily available components, such as photo sensors and digital projector micromirrors, and made minimal modifications to turn them into a tunable-angle diffraction grating.

Early tests have shown that the camera is capable of recording images and video at up to 4,8 million frames per second without sacrificing spatial resolution. Scientists used this device to observe the formation of a plasma bubble created when an ultrashort laser pulse collided with the surface of water.

This technology also allowed scientists to study the formation of carbon dioxide bubbles in carbonated drinks and record on video the destruction of onion cells under the influence of a femtosecond laser. The researchers believe that the high speed and quality of this system could find application in nanomedical devices and other complex problems.

In the future, this technology could lead to the creation of not only high-speed cameras, but also new types of lidars and laser radars. Such instruments can help unmanned aerial vehicles and space probes accurately and quickly detect hazards, which is critical for successful missions and landings on Earth and other planets.

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Measuring the mass of neutrinos is a complex and important task in modern physics. New research results, such as the one in Heidelberg, are helping us move closer to understanding the nature of these mysterious particles and their role in the universe.

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