Haven&#x27;t all those records been broken by cooling gases at a very low pressure?<p>But in this case, the laser is not cooling the liquid.  It is cooling a solid crystal of an anti-Stokes phosphor within the liquid.<p>The negative Stokes shift is powered by thermal energy, so the more you make it convert near-infrared to green, the colder it gets.  The liquid gets colder because it is touching the crystal.<p>So the article is even wrong on that count.  This laser is not cooling a liquid at all.  It won&#x27;t do anything without the anti-Stokes phosphor crystal.