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has been cited by the following article:

• TITLE: Nonlinear Refraction of Peripheral-Substituted Zinc Phthalocyanines Investigated by Nanosecond and Picose-cond Z Scans

  AUTHORS: Yunjing Li, Timothy M Pritchett, Jiandong Huang, Meirong Ke, Wenfang Sun

  KEYWORDS: Nonlinear Refraction; Zinc Phthalocyanine; Z Scan; Excited-State Refraction Cross-Section; Wavelength Dispersion

  JOURNAL NAME: Optics and Photonics Journal, Vol.1 No.2, June 29, 2011

  ABSTRACT: 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.