کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1538667 996618 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optical limiting properties of zinc phthalocyanines in solution and solid PMMA composite films
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Optical limiting properties of zinc phthalocyanines in solution and solid PMMA composite films
چکیده انگلیسی

The nonlinear absorption and optical limiting (OL) performance of tetra- and octasubstituted zinc phthalocyanine complexes were described in solution and in the solid state using the open-aperture Z-scan technique. The measurements were performed using collimated 4 ns pulses generated from a frequency-doubled Nd:YAG laser at 532 nm wavelength. The polymeric films exhibit a much larger effective nonlinear absorption coefficient in comparison with solution. However, the parameters of the ratio of the excited to ground state absorption cross section and energy-dependent saturation in solution are much better compared to properties in the polymeric film. In terms of the ratio of the excited to ground state absorption cross section, the peripherally substituted complexes show better OL performance than the non-peripherally substituted derivative.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 283, Issue 23, 1 December 2010, Pages 4749–4753
نویسندگان
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