用过氧聚钨酸 (PPTA)水溶液 ,通过离心涂膜法在显微镜载玻片上制备了具有光滑表面且厚度为 1 0 0nm的 PPTA薄膜 .利用 PPTA薄膜在紫外光照下可硬化的特点 ,在薄膜上制备光栅进行研究并通过双光束干涉曝光法 ,制备了凹面光栅 .结果表明 ,PPTA是作为研制光栅以及其它光学元件的薄膜材料 ,具有很高的利用价值 A PPTA film with a smooth surface and a thickness of 100 nm was prepared on a microscope glass slide by centrifugal coating method by using aqueous solution of peroxopolyanthungstic acid (PPTA). By utilizing the characteristics of the PPTA film being hardenable under ultraviolet light, On the grating prepared by the research and through the double beam interference exposure method, the preparation of the concave grating.The results show that, PPTA as a grating and other optical components of the film material, has a high value