Femtosecond dopant-to-solvent energy transfer inside helium nanodroplets Bernhard Thaler, Miriam Meyer, Pascal Heim, Leonhard Treiber, Wolfgang E. Ernst and Markus Koch EPJ Web Conf., 205 (2019) 05023 Published online: 16 April 2019 DOI: 10.1051/epjconf/201920505023