%0 Journal Article
%T Nonlinear Refraction of Peripheral-Substituted Zinc Phthalocyanines Investigated by Nanosecond and Picose-cond Z Scans
%A Yunjing Li
%A Timothy M Pritchett
%A Jiandong Huang
%A Meirong Ke
%A Wenfang Sun
%J Optics and Photonics Journal
%P 70-74
%@ 2160-889X
%D 2011
%I Scientific Research Publishing
%R 10.4236/opj.2011.12011
%X The singlet and triplet excited-state refraction cross-sections of dimethyl sulfoxide (DMSO) solutions of ten zinc phthalocyanine derivatives with mono-or tetra-peripheral substituents at 532 nm were obtained by simultaneous fitting of closed-aperture Z scans with both nanosecond and picosecond pulse widths. Self-focusing of both nanosecond and picosecond laser pulses was observed in all complexes at 532-nm wavelength. The complexes with tetra-substituents at the ?-position exhibit relatively larger refraction cross-sections than the other complexes. The wavelength dependence of the singlet refraction cross-section of a representative complex was observed to be non-monotonic in the range of 470 - 550 nm.
%K Nonlinear Refraction
%K Zinc Phthalocyanine
%K Z Scan
%K Excited-State Refraction Cross-Section
%K Wavelength Dispersion
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=5516