Sciuti, L. F.
Cocca, L. H. Z.
Caires, A. R. L.
Goncalves, P. J.
de Boni, L.
Número total de Autores: 5
Afiliação do(s) autor(es):
 Univ Sao Paulo, Escola Engn Sao Carlos, Sao Carlos, SP - Brazil
 Univ Sao Paulo, Inst Fis Sao Carlos, Sao Carlos, SP - Brazil
 Univ Fed Mato Grosso do Sul, Inst Fis, Campo Grande, MS - Brazil
 Univ Fed Goias, Inst Fis, Goiania, Go - Brazil
 Univ Fed Goias, Inst Quim, Goiania, Go - Brazil
Número total de Afiliações: 5
Tipo de documento:
Chemical Physics Letters;
AUG 16 2018.
Citações Web of Science:
This work reports on the singlet excited-state absorption spectrum of sodium-copper chlorophyllin using three distinct methods of Z-Scan measurement: white-light continuum Z-Scan technique ranging from 470 to 780 nm, tunable Z-Scan technique with femtosecond pulses (490-700 nm) and 532 nm Z-Scan technique with 100 ps pulse width. A transition from reverse saturation absorption (RSA) to saturable absorption (SA) was observed at 570 nm, and at 532 nm RSA was tested showing potential application as optical limiting device. Pump-probe technique was used to measure lifetime of the first singlet excited state (22 ps) and no evidence of triplet conversion was observed. (C) 2018 Elsevier B.V. All rights reserved. (AU)