Nonlinear characterization of solutions of polycarbazolyldiacetylene polyDCHD-HS at 1064 and 1500 nm by Z-scan

Year: 2002

Authors: Giorgetti E., Toci G., Vannini M.

Autors Affiliation: Istituto di RSOENC, CNR, Via Panciatichi 64, Firenze 50127, Italy

Abstract: The complex nonlinearity of polydiacetylene polyDCHD-HS in toluene solutions was measured at ? = 1064 and 1500 nm by using Z-scan and picosecond pulses. The values of the real part of second order molecular hyperpolarizability ? were -2.3 × 10-47 and -3 × 10-47 m5/V2 at 1064 and 1500 nm, respectively, while the nonlinear absorption could be better modeled with a three-photon process at both wavelengths.

Journal/Review: LASER PHYSICS

Volume: 12 (4)      Pages from: 707  to: 709

KeyWords: Acetylene; Colorimetry; Acid PCDA

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