Enhancement of PMMA nonlinear optical properties by means of a quinoid molecule
作者： Franco D’Amore , Marta Lanata , Silvia M. Pietralunga , Maria C. Gallazzi , Giuseppe Zerbi
DOI: 10.1016/S0925-3467(03)00181-2
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摘要: Abstract In this paper we present the study of linear and nonlinear optical properties organic films based on mixing a polymeric matrix (PMMA) highly material recently synthesised characterised, namely (5,5 ′ -Bis(3,5-di- tert -butyl-4-oxo-2,5-cyclohexadien-1-ylidene)-5,5 -dihydro-2,2 -bithiophene), with prospective reaching good compromise between processability high (NLO) solid solution. Linear characterisation is performed by means variable angle spectroscopic ellipsometry in spectral range 260 1700 nm. Third order NLO samples have been investigated third harmonic generation at fundamental wavelength 1500 Different guest/host concentrations studied. Due to solubility guest into matrix, able reach concentration up 50% weight, an enhancement PMMA three magnitudes.
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