Abstract
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
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