title: Ultrafast third-order nonlinear optical properties of ZnPc(OBu)(6)(NCS)/DMSO solution.
abstract: The ultrafast third-order nonlinear optical properties of ZnPc(OBu)(6)(NCS)/dimethyl sulfoxide solution are investigated by optical Kerr effect (OKE) and pump-probe techniques with femtosecond pulses. Using CS(2) as the reference, the third-order susceptibility of the sample solution is obtained as about 1.40x10(-14) esu at a concentration of 3.00x10(-5) M. The second hyperpolarizability for the sample solution is deduced to be as large as 2.35x10(-31) esu. The dynamic characteristics of the nonlinear optical response and the origins of the OKE signal can be attributed to excited singlet state populations.
authors.affiliation: Department of Physics, Harbin Institute of Technology, Harbin 150001, China.
authors.forename: DeGui
authors.initials: D
authors.lastname: Kong
authors.forename: WuBiao
authors.initials: W
authors.lastname: Duan
authors.forename: XueRu
authors.initials: X
authors.lastname: Zhang
authors.forename: ChunYing
authors.initials: C
authors.lastname: He
authors.forename: Qing
authors.initials: Q
authors.lastname: Chang
authors.forename: YuXiao
authors.initials: Y
authors.lastname: Wang
authors.forename: YaChen
authors.initials: Y
authors.lastname: Gao
authors.forename: YingLin
authors.initials: Y
authors.lastname: Song