According to German researchers, the collision of highly pressurized gasses with the right frequency of laser creates a temperature drop of 66 degrees Celsius, or 119 degrees Fahrenheit in just a few seconds. The laser excites the electron of the gas molecules, causing them to enter a higher orbit around the nuclei. While in the higher orbit the electron needs more energy to stay in the higher orbit so it draws energy from its surroundings, in this case its thermal energy. As the electrons absorb all the energy, the gas particles slow down causing the temperature to drop very, very fast! Almost rendering absolute zero depending on the enclosure and psi of the gasses, higher psi means quicker cooling.
Given the right gas and laser this process is relatively simple. According to Martin Weitz from University of Bonn, "In this process electron orbit of the particles 'bends' at the time of collision, you therefore need less energy than normal in order to vault the electron into high orbit." This means that due to the low energy requirements and simplicity, this process can be applied to countless situations on a budget.
One idea was to create a mini refrigerator that requires very little energy and due to the fast, adjustable cooling you wouldn't get that liquid build up which would be prominent in any conventional refrigerator. Furthermore, this process can be used to super cool super computers, servers, vehicle engines, turbines, welded metal, frozen art or even you leftover takeaway. Can you think of any other applications?
Here is some frozen art