| 1 | Synthesis and Nonlinear Optical Properties of New Quadrupolar Chromophores显示文摘Two new symmetric chromophores: 2, 8-bis-[(2-4′-ethoxy phenyl-5-4′-styryl)-1, 3, 4- oxadiazole] didibenzothiophene (abbreviated as SO-G1) and 2, 8-bis-[(2-4′-ethoxy phenyl-5-4′- styryl)-1, 3, 4-oxadiazole]-N-ethyl carbazole (abbreviated as NO-G1) have been synthesized and characterized. Both chromophores exhibit strong two-photon absorption (TPA) with the cross-sections of 2.99×10-48 and 3.48×10-48 cm4?s?photon-1 in THF and large up-conversion emission, when pumped by Ti:sapphire femto-second laser at 720 nm. | XiaoZhiGUO XiaoMeiWANG YuKouDU NanPingHUA MingSHEN WanLiJIANG PingYANG | 2005 | Chinese Chemical Letters2005，16，5： | 1 |
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