申请人:Facebook Technologies, LLC
公开号:US20200355997A1
公开(公告)日:2020-11-12
The disclosure provides thianthrene derivatized monomers and polymers for use in volume Bragg gratings, including, but not limited to, volume Bragg gratings for holography applications. Several thianthrene structures are described, including structures substituted by halogens, sulphur containing groups, phenyl groups, at least one polymerizable group, etc. Thianthrene derivatized polymers in Bragg gratings applications lead to materials with higher refractive index, low birefringence, and less packing in solid state. Thianthrene derivatized monomers/polymers can be used in any volume Bragg gratings materials, including two-stage polymer materials where a matrix is cured in a first step, and then the volume Bragg grating is written by way of a second curing step of a monomer.
本公开提供了硫代蒽衍生单体和聚合物,用于体积布拉格光栅,包括但不限于用于全息应用的体积布拉格光栅。描述了几种硫代蒽结构,包括被卤素,含硫基团,苯基团,至少一个可聚合基团等取代的结构。在布拉格光栅应用中,硫代蒽衍生聚合物导致具有更高折射率,低双折射和固态中较少的填充材料。硫代蒽衍生单体/聚合物可用于任何体积布拉格光栅材料,包括两阶段聚合物材料,其中在第一步中固化基体,然后通过第二次固化单体的方式编写体积布拉格光栅。