Optical effects of thermocavitation in natural plant extracts

An extra-cavity pulse generation by thermocavitation in a Hibiscus sabdariffa L. extract (a natural anthocyanin) is presented. This is, to the best of our knowledge, the first experimental demonstration of thermocavitation in a natural extract. It is also demonstrated that the solution of anthocyanins is acting as an optical shutter triggered by thermocavitation.