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首页> 外文会议>1999 International Conference on Biomedical Optics >Hyper-Rayleigh scattering and multiphoton fluorescence of new merocyanine dye and stilbazolium salt
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Hyper-Rayleigh scattering and multiphoton fluorescence of new merocyanine dye and stilbazolium salt

机译：新型部花青染料和噻唑鎓盐的超瑞利散射和多光子荧光

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Abstract: The potential development of optoelectronic devices based on the nonlinear optical response of organic donor-acceptor molecules has aroused much recent interest. In this paper, two new ionic species in the classes of merocyanine dye and stilbazolium salt are studied by the newly developed Hyper- Rayleigh scattering (HRS) technique. Both compounds are dissolved in methanol under the 1064 nm-laser radiation in the experiments. The results show that the value of the first-order hyperpolarizability $beta for the merocyanine dye is very large and for the stabilization salt is abnormally too large. Further studies reveal that both the merocyanine dye and the stabilization salt has multi-photon fluorescence (MPF) emission which overlaps the HRS signal at 532 nm under the radiation of 1064 nm but the merocyanine dye's MPF is weaker. If we cut off the MPF from the HRS signal, the $beta value for the merocyanine dye is in the range of 10$+$MIN@28$/ esu and the $beta value for the stilbazolium salt is $APEQ 10$+$MIN@27$/ esu, which is among the largest solution value of $beta for organic species.!7
机译：摘要：基于有机供体-受体分子的非线性光学响应的​​光电器件的潜在发展引起了人们的广泛关注。在本文中，通过最新开发的超瑞利散射（HRS）技术研究了花菁染料和stilbazolium盐类中的两个新离子物种。在实验中，两种化合物均在1064 nm激光辐射下溶于甲醇。结果表明，对于花青染料，一阶超极化率$ beta的值非常大，而对于稳定盐，其反常值太大。进一步的研究表明，花菁染料和稳定盐都具有多光子荧光（MPF）发射，在1064 nm的辐射下，它与532 nm处的HRS信号重叠，但是花菁染料的MPF较弱。如果我们从HRS信号中切断MPF，则花青染料的$ beta值在10 $ + $ MIN @ 28 $ / esu的范围内，而stilbazolium盐的$ beta值在$ APEQ 10 $ + $ MIN @ 27 $ / esu，这是有机物物种beta的最大价值。！7

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