By shining a bright light on the surface of the sample, it is possible to draw the sequence of different chemical reactions in the body. A research team including researchers from the University of Gothenburg has developed the world’s fastest laser camera, that fires in real time, which is at least a thousand times faster than today’s modern combustion detectors. This finding is very important for the study of the thermal properties of hydrocarbons.
What makes this thing burn in different situations? To investigate this question, researchers use a laser camera that photographs the material in two layers, known as LS CUP (one-shot laser sheet pressed ultrafast photography). By looking at the sample from the side, it is possible to see the reaction in the atmosphere that occurs in time and space. Researchers have used LS-CUP to study the combustion of various hydrocarbons.
12.5 billion frames per second
Scientists at the University of Gothenburg, in collaboration with American and German workers, have developed a high-speed laser camera that can create video at a record speed of 12.5 billion frames per second, or less than a thousand times. faster than today’s best laser equipment. This allowed the researchers to use previously unobtainable temporal resolution to visualize the explosion.
“The more pictures you take, the more you’ll be able to follow the schedule. Using light to produce nano-sized soot particles, various light phenomena and poly-cyclic aromatic hydrocarbons, PAHs, which are dangerous to the environment, explains Yogeshwar Nath Mishra, who is one of the researchers from University from Gothenburg and the present provider of results science articles in the journal Light: Science & Applications.
The soot bug is short
The value of soot from hydrocarbons makes up 70% of the matter in the interstellar space and is an interesting nanomaterials in electronic and energy applications. Soot compounds and aromatic hydrocarbons are very short-lived, with lifetimes measured in nanoseconds when they burn. Fires are characterized by rapid reactions that do not repeat themselves. Studying combustion requires a faster way to capture images, which researchers have now achieved with this new laser camera.
“In the past, those problems arose when cameras were limited to a few million frames per second. “Creating two-dimensional images of different light sources requires repeated laser pulses, which affect the light temperature as the laser adds energy,” says Yogeshwar Nath Mishra.
Applications in many research areas
A new laser camera takes a single image with a single laser pulse. The imaging rate is up to 10 billion frames per second and can be quickly turned on to see all types of laser signals during the particle’s lifetime. Applications extend beyond combustion analysis and can be used in many areas in physics, chemistry, biology and medicine, energy and environmental research.
Source: University of Gothenburg
