Nonlinear optical properties of novel C-60 derivatives under picosecond laser excitation

作者:Mao Yan Li*; Cheng Yong Guang; Liu Jun Hui; Lin Bing Chen; Huo Yan Ping; Zeng He Ping
来源:Chinese Physics Letters, 2007, 24(4): 950-953.

摘要

We investigate the third-order nonlinear optical properties of six novel fullerene derivatives under picosecond laser excitation by Z-scan technique. The experimental results reveal that all the derivatives have very large nonlinear absorption coefficient under 532 nm pulses excitation and great third-order nonlinear refraction index under 1064 nm pulses excitation. The molecular second hyperpolarizabilities are obtained from the experimental results.