Third‐order nonlinear optical susceptibilities of the Langmuir–Blodgett films of octa‐substituted metallophthalocyanines
作者： M. A. Díaz‐García , J. M. Cabrera , F. Agulló‐López , J. A. Duro , G. de la Torre
DOI: 10.1063/1.118037
关键词: Derivative (chemistry) 、 Blueshift 、 Cobalt 、 Order of magnitude 、 Metal 、 Third order nonlinear 、 Absorption spectroscopy 、 Analytical chemistry 、 Chemistry 、 Langmuir–Blodgett film
摘要: The third‐order susceptibilities χ(3)(−3ω:ω,ω,ω) of Langmuir–Blodgett films a series octasubstituted metallophthalocyanines have been measured by third‐harmonic generation experiments at 1.064 and 1.904 μm. For the latter excitation wavelength marked enhancement nonlinearity for cobalt‐containing compound has found, χ(3) values are one order magnitude larger than other systems. effect associated to role two‐photon allowed metal (possibly d−d) transitions in cobalt derivative.
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