Influence of electron-withdrawing groups in two-photon absorption of imidazopyridines derivatives - Pelosi, André Gasparotto; Cocca, Leandro Henrique Zucolotto; Abegão, Luis Miguel Gomes; Sciuti, Lucas Fiocco; Piguel, Sandrine; De Boni, Leonardo; Mendonça, Cleber Renato (Dyes and Pigments, 2022)