We present the measurements of the third-order polarizability (γ) of several platinum poly-ynes obtained using picosecond laser pulses. The real part of γ was measured using the optical Kerr effect with a 1.064-µm pump and a 0.532-µm probe. The imaginary part was evaluated from the two-photon absorption coefficient determined at 0.532 µm. The platinum poly-ynes had low absorption in the visible and the near-infrared wavelengths.
© 1989 Optical Society of America
Shekhar Guha, Claude C. Frazier, Pamela L. Porter, Keith Kang, and Sharon E. Finberg, "Measurement of the third-order hyperpolarizability of platinum poly-ynes," Opt. Lett. 14, 952-954 (1989)