申请人:UNIVERSITY PATENTS, INC.
公开号:EP0021695A2
公开(公告)日:1981-01-07
Novel non-linear optical, piezoelectric, pyroelectric, waveguide, and other materials are presented together with processes for their employment and articles formed thereby. Such materials, processes and articles comprise diacetylenes and polymers formed from diacetylenic species, which polymers are amenable to close geometric, steric, structural, and-electronic control. Accordingly, it is now possible to design, formulate and employ new diacetylenic species and polymers formed therefrom to provide non-linear optic, waveguide, piezoelectric, and pyroelectric materials and devices having surprising efficiencies and degrees of effect. According to a preferred embodiment of the invention, diacetylenes which are crystallizable into crystals. having a non-centrosymmetric unit cell may form single crystals or may be elaborated into a thin film upon a substrate by the Langmuir-Blodgett technique. Such films may, optionally, be polymerized either thermally or by irradiation for use in non- linear optical and other systems. According to other prefered embodiments, diacetylenes are covalently bonded to substrates through the employment of silane species and subsequently polymerized to yield non-linear optic and other devices having high structural integrity in addition to high efficiencies and effects.
本文介绍了新型非线性光学、压电、热释电、波导和其他材料,以及使用这些材料的工艺和由此形成的物品。这些材料、工艺和物品包括二乙炔和由二乙炔类物质形成的聚合物,这些聚合物可进行严密的几何、立体、结构和电子控制。因此,现在可以设计、配制和使用新的二乙炔类物质和由其形成的聚合物,以提供非线性光学、波导、压电和热释电材料和装置,其效率和效果令人惊讶。根据本发明的一个优选实施方案,可结晶成具有非中心对称单胞的晶体的二乙炔可形成单晶体,也可通过朗缪尔-布洛杰特技术在基底上形成薄膜。这种薄膜可以选择热聚合或辐照聚合,用于非线性光学系统和其他系统。根据其他优选的实施方案,二乙炔通过硅烷共价键合到基底上,然后进行聚合,以产生非线性光学器件和其他器件,这些器件除了具有高效率和高效果外,还具有很高的结构完整性。