%0 Journal Article
%T Determination of the Triplet State Lifetime of C<sub>60</sub> /Toluene Solution and C<sub>60</sub> Thin Films by Pump-Probe Method
%A Cheng Bao Yao
%A Elisee Kponou
%A Yun Dong Zhang
%A Jin Fang Wang
%A Ping Yuan
%J Optics and Photonics Journal
%P 81-84
%@ 2160-889X
%D 2011
%I Scientific Research Publishing
%R 10.4236/opj.2011.12013
%X Excited state lifetimes of C<sub>60</sub>/toluene solution and C<sub>60</sub>  films macromolecular were measured by pump-probe method. Relation between optical switching effect of material and pulse width of pumping field is briefly described. It is found that the faster switching speed of light is, the triplet state lifetime is shorter. A He-Ne laser, as a probe, passed through the sample in the pump-probe experiment. All-optical switching effect was realized. Changing the optical power of the pumping field, switching response of the sample and modulation depth were investigated. In certain experimental conditions, relation between transmission through the sample and response were measured by an oscilloscope. Triple state lifetime of the molecule is speculated. The result showed that C<sub>60</sub>/toluene solution and C<sub>60</sub>  film have a fast response time. They would be utilized in some applications, such as optical switches, photonic devices.
%K Excited State Lifetimes
%K All-Optical Switching
%K Fullerenes
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=5524