New Milestone in Laser Cooling: Silica Glass Cooled by Record 67 Kelvin
New Milestone in Laser Cooling: Silica Glass Cooled by Record 67 Kelvin A research team has achieved a significant milestone in laser cooling technology by cooling silica glass by a record-breaking 67 Kelvin. This breakthrough not only sets a new benchmark in laser cooling but also opens up new possibilities for developing more efficient cooling techniques for a wide range of applications. 1. What is Laser Cooling? Laser cooling is a technique used to cool materials by using laser light. When certain materials are exposed to laser light, they absorb photons and emit them at lower energies, resulting in a cooling effect. 2. Previous Achievements and Challenges Prior to this breakthrough, laser cooling had been used to cool gases and some solids to extremely low temperatures. Cooling bulk materials like silica glass had proven challenging due to their thermal properties. 3. The Breakthrough The researc...