Scientists at the National Center for Physics and Mathematics (NCPM) and Rosatom have devised an adaptive optical system that, thanks to its record-breaking speed, compensates for the influence of atmospheric distortions on laser radiation. The development will help obtain clearer images during astronomical observations.
What is the difficulty of astronomical observations?
The Earth's atmosphere is characterized by turbulence (a property in which the pressure, temperature, speed, and direction of the wind change in the atmosphere), which reduces the focusing of laser radiation on an object. This also limits the resolution of telescopes when obtaining images from space.
According to the scientific director of the NCPM, Alexander Sergeev, programmable logic integrated circuits (PLICs) were used in the creation of the adaptive optical system. They process images faster than processors.
PLICs do not work like processors, but like video cards
Thanks to PLICs, the speed of the adaptive optical system in experiments in a closed space increased to 4 kHz, and in real conditions up to a spacecraft — more than 2 kHz.
A level of several kilohertz allows correcting the distortion of radiation in a turbulent atmosphere
The development will also help to effectively focus laser radiation to achieve exawatt power at the Center for Research on Extreme Light Fields of the NCPM. It will be needed as part of the work with advanced laser technologies and a "megascience" class installation in fundamental research.
Now on home
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