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Synthesis and Nonlinear Optical Properties of Three-Dimensional Phosphonium Ion Chromophores
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1998
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Optical MaterialsNonlinear Optical PropertiesEngineeringNonlinear OpticsOptical PropertiesNon-linear OpticPhotonic MaterialsApplied PhysicsCentral Phosphonium IonNonlinear CrystalsThree-dimensional Nlo ChromophoresPhotophysical PropertyChemistryLinear Optical PropertiesOptical SpectroscopyMolecule-based MaterialPhotochromismPhosphorescence
A substantial enhancement in the nonlinear optical properties of three-dimensional NLO chromophores in which three or four 4′-dibutylaminoazobenzenyl moieties are connected through a central phosphonium ion (right) is observed relative to the corresponding one-dimensional compound. This contrasts with the linear optical properties, which behave additively.