標題: Synthesis and characterization of nonlinear optical chromophores with conformationally locked polyenes possessing enhanced thermal stability
作者: Shu, YC
Gong, ZH
Shu, CF
Breitung, EM
McMahon, RJ
Lee, GH
Jen, AKY
應用化學系
Department of Applied Chemistry
公開日期: 1-六月-1999
摘要: Dipolar NLO chromophores with an interposed conjugated tetraene segment in which all but four of the methine groups are incorporated into a tetrahydronaphthalene framework have been synthesized and characterized. This conformation-locking approach furnishes NLO chromophores possessing an enhanced thermal stability. X-ray crystallographic data indicate that the polyenic chain of these molecules exhibits a near-planar all-trans conformation in the solid state. EFISH measurements show that these conformationally locked tetraenic chromophores exhibit large second-order optical nonlinearities (mu.beta similar to 4000 x 10(-48) cm(6) at 1907 nm), although the nonlinearities of the corresponding "unlocked" analogues are slightly larger.
URI: http://hdl.handle.net/11536/31308
ISSN: 0897-4756
期刊: CHEMISTRY OF MATERIALS
Volume: 11
Issue: 6
起始頁: 1628
結束頁: 1632
顯示於類別:期刊論文


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  1. 000080886100034.pdf