Laser Beams are Now Used to Cool Liquids and Gases

laser_beamsWe already know that laser beams are many times used to heat different things, but their less frequent use is for cooling gems and gases. Recently, a group of scientists has used a series of infrared lasers to cool fluids by around 35 degrees Fahrenheit. This research, led by American specialists, has been released in the scientific publications, and will be presented at future academic conferences.

It is the first time when lasers can cool various liquids, like normal water, in daily circumstances, according to the experts who took part in this innovative experiment. This was truly a dilemma if the tests could be performed with successful results because water gets warmers when it is lighted. The real problem of the experiment was creating the necessary tools and developing a way to measure the higher and lower temperatures of the nanocrystals by using wavelengths of light that is used to catch them.

To cool an extremely tiny amount of water includes the implementation of blue-waved infrared lasers and nanocrystals in separate drops of water. The laser photons are targeting the atoms inside the crystals, which are then activated. When their atoms release the laser’s photons, the process takes place at higher levels of energy compared to when the photons entered into the crystal. This carries the heat away from the crystals or gases, effectively cooling these substances and the small amounts of water around them.

These tests and the capability to perfectly cool a smaller area have various prospective applications for future use. It may be implemented to microprocessors in IT industry, to avoid excessive heating. It also may be used for cooling and therefore silencing without destructive effects, an individual neuron, to allow scientists to understand how the human brain is rewired during this process without actually affecting the organic tissues. It could be applied to slow different sections of organic cells as they separates or heal themselves, while the procedure can be analyzed in depth.

There are many questions about how tissues regenerate and how cells and microorganism operate, since it has not been possible to cool organic layers to analyze their natural characteristics. By using laser devices, it could be possible for scientists to get film slow-motion films of processes taking place in living tissues. The good part is that they do not have to refrigerate the whole tissue, which could destroy it or modify its regular behavior.

The technological innovation may also be applied to make higher-power production lasers that are not possible with present methods. This is because at certain energy levels, these machines have a tendency to get too hot and burn during usage. Right now, experts have to focus on improving the entire method, beginning with enhancing its performances, since in the current form, the devices consume a ton of power.

Few specialists have analyzed how they can use this technological idea to fix problems because having laser devices to cool fluids was not possible before. They have an interest in the methods that other researchers or companies could bring to their studies.

Image source: Sciencequestions

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