Abstract

Buckyball C₆₀ molecules are reported to have large picosecond nonlinear optical response at 1.06 μm wavelength.¹ We used 1.06 μm, 30 ps pulses to measure a degenerate four-wave mixing signal from C₆₀/benzene solutions as a function of C₆₀ concentration. We will present the results of our measurements normalized to the signal observed from pure benzene. The magnitude of the complex hyperpolarizability of a C₆₀ molecule is at most 2000 times that of a benzene molecule. If the phases of the hyperpolarizabilities of the two molecules are the same, the magnitude ratio must be smaller than 100.

© 1992 Optical Society of America