物理学报2012，Vol.61Issue(22)：235-241,7.
高能量效率的大口径多台阶衍射光学元件
Large-diameter multi-level diffractive optical elements with high energy efficiency
摘要
Abstract
When large-diameter (〉 100 mm) multi-level diffractive optical elements are applied to high-power laser systems in order to solve the problem of low energy efficiency, the energy efficiency can be greatly improved within uniform focal spot by reducing high diffraction orders. In this paper, we show both theoretically and experimentally that more than 90% energy can be focused into a desired spot as predicted previously by theoretical estimation.关键词
束匀滑/标量衍射/傅里叶光学/相位恢复Key words
beam smoothing/scalar diffraction/fourier optics/phase retrieval分类
数理科学引用本文复制引用
邬融,华能,张晓波,曹国威,赵东峰,周申蕾..高能量效率的大口径多台阶衍射光学元件[J].物理学报,2012,61(22):235-241,7.基金项目
国家高技术研究发展计划（批准号：2011AA8043048）资助的课题. （）
