Studies of optical limiting with C60 in KBr and C60 thin film on optical glass

摘要

Abstract: The optical limiting behavior has been first observed for C$-60$/ solution in toluene and in polymethyl methacrylate by Lee W. Tutt et al and A. Kost et al respectively. In order to make the possible use of the optical limiting in practice, we have studied the optical limiting of Q- switched Nd:YAG radiation at 532 nm using the C$-60$/ in KBr as a solid host and the C$- 60$/ thin film on optical glass. The experimental results for the C$-60$/ in KBr show that the threshold power of the optical depends on the concentrations of the C$-60$/ in KBr, and the solid KBr-C$-60$/ is induced optical damaged as the input fluence reach to 0.7 J/cm$+2$/. The experiment results for the C$-60$/ thin film on optical glass show that the optical limiting behavior is not obvious, and the C$-60$/ film is be induced optical damaged when the input fluence is greater than 0.55 J/cm$+2$/.!4