Nonlinear absorption investigation in imidazopyridines derivates - Mendonça, Cleber Renato; Pelosi, André Gasparotto; Cocca, Leandro Henrique Zucolotto; Abegão, Luis Miguel Gomes; Sciuti, Lucas Fiocco; Piguel, Sandrini; De Boni, Leonardo (Photonics West, 2022)