OPTICAL LIMITING PROPERTIES OF BUCKMINSTERFULLERENE C(60)/C(70)

Optical limiting behavior through reverse saturable absorption for the solution of a buckminsterfullerene C60/C70 mixture (85% C60 and 15% C70) in toluene has been observed with 10 ns, 530 nm laser pulses. The solution concentration dependence of optical limiting degree is investigated by using the solutions of various transmissivities. The strong influence of the triplet state quenched in the existence of O-3(2) is also investigated by comparing the optical limiting process for the argon-degased solution and the not argon-degased solution. The results indicate that buckminsterfullerene is a kind of promising material for light protector.