Could Lasers Made From Olive Oil Be The Next-Gen Freshness Detector or Use-By Label?

Could Lasers Made From Olive Oil Be The Next-Gen Freshness Detector or Use-By Label?

Imagine scanning a tuna steak in your fridge and suddenly a tiny laser pulse beams an expiration date or, surprise, tells you it’s not really wild-caught. That’s no longer a sci‑fi: new research from a group of academic researchers from the Jožef Stefan Institute in Slovenia and the Aristotle University of Thessaloniki in Greece published in Advanced Optical Materials discusses how they were able to create edible microlasers crafted entirely fro…