Singlet excited state absorption of porphyrin molecules for pico- and femtosecond optical limiting application - Barbosa Neto, Newton Martins; Oliveira, Samuel Leite; Misoguti, Lino; Mendonça, Cleber Renato; Gonçalves, P. J.; Borissevitch, Iouri E.; Dinelli, L. R.; Romualdo, L. L.; Batista, Alzir A.; Zílio, Sérgio Carlos (Journal of Applied Physics, 2006)