Characteristics of an organic nonlinear optical material urea l-malic acid film

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• 作者：Li Zhu ; Jiayu Zhang ; Dingan Chen ; Xueyuan Feng ; Yonghong Hu ; Lingling Xu ; Wen Wang and Yiping Cui
• 关键词：Organic nonlinear optical material ; Film ; Physical vapour deposition
• 刊名：Materials Letters
• 出版年：2006
• 出版时间：June 2006
• 年：2006
• 卷：60
• 期：13-14
• 页码：1740-1743
• 全文大小：222 K

文摘

Urea l-malic acid (ULMA) is one of the derivatives of urea. ULMA keeps the nonlinear optical properties and broad transparency range of urea with greatly reduced hygroscopicity. ULMA film (2 μm) was prepared with physical vapour deposition (PVD) method. XRD and FTIR measurements show that the film and the ULMA powder have the same composition and crystal structure. Furthermore, the film keeps the nonlinear properties of the ULMA crystal.