IIT Madras team generates lasers from alcohol-cooked carrots

A team of IIT Madras researchers has found that biocompatible lasers could be generated from carrots cooked in ethanol (alcohol). The team found that optically active pigments carotenoids present in carrots gave them lasing properties. A carrot's carotenoid concentration was increased by cooking it in alcohol and light was then pumped through it to produce laser, a researcher said.