申请人:University Patents, Inc.
公开号:US04431263A1
公开(公告)日:1984-02-14
Novel nonlinear 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 nonlinear 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 noncentrosymmetric 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 nonlinear optical and other systems. According to other preferred embodiments, diacetylenes are covalently bonded to substrates through the employment of silane species and subsequently polymerized to yield nonlinear optic and other devices having high structural integrity in addition to high efficiencies and effects.
本发明提供了新型非线性光学、压电、热释电、波导和其他材料,以及它们的使用过程和由此形成的文章。这些材料、过程和文章包括由二乙炔基物种形成的二乙炔烯和聚合物,这些聚合物易于进行几何、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基物种和由此形成的聚合物,以提供具有惊人效率和效果的非线性光学、波导、压电和热释电材料和设备。根据本发明的一种优选实施方式,可结晶成具有非中心对称晶胞的晶体的二乙炔烯可以形成单晶,或通过Langmuir-Blodgett技术制成薄膜。这些薄膜可以选择性地通过热或辐射聚合,用于非线性光学和其他系统。根据其他优选实施方式,通过使用硅烷物种将二乙炔烯共价键合到基底上,并随后聚合,以产生具有高结构完整性以及高效率和效果的非线性光学和其他设备。