DOE with high diffractive efficiency can be fabricated by laser aided fabrication technology LDWS (laser direct writing system), similar to the way manufacturing micro electronics.
采用类似于微电子加工手段的激光辅助制造技术——激光直写技术，可以制作具有高衍射效率的DOE。
Femtosecond laser direct writing in transparent materials and the two-photon photopolymerization technology are used to fabricate the phase-gratings and Dammann grating.
采用飞秒激光透明材料改性和飞秒激光双光子聚合技术制备了位相光栅和达曼光栅等微光学元件。
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