A new imaging technique, developed by the teams of Professors Jinyang Liang and Fiorenzo Vetrone at the Institut national de la recherche scientifique (INRS), can measure temperature in 2D, without contact, and in just a snap. The results of their research were published in the journal Nature Communications. This accurate real-time temperature detection could one day improve photothermal therapy and help in the early diagnosis of skin cancers.