| 激光直写制作高阶螺旋相位板及其性能 |
| |
| 引用本文： | 范长江,徐建程,任志君,应朝福,王辉.激光直写制作高阶螺旋相位板及其性能[J].强激光与粒子束,2011,23(12):26-27. |
| |
| 作者姓名： | 范长江 徐建程 任志君 应朝福 王辉 |
| |
| 作者单位： | 1.浙江师范大学 信息光学研究所, 浙江 金华 321 004 |
| |
| 基金项目： | 浙江省自然科学基金，浙江师范大学博士启动资金项目 |
| |
| 摘 要： | 将拓扑荷为4的螺旋相位光束与平面光干涉的计算全息图输入到空间光调制器中，得到含有多个衍射级次的高阶涡旋光束。为提高衍射效率，利用激光直写技术制作拓扑荷为4的高阶螺旋相位板，经测定，相位板深度理论数值为1.073 m，测量数值为1.082 m，相位板制作误差在0.83%以内。平行光束通过此相位板时，在夫琅和费衍射场获得一个高质量的高阶光学涡旋，光强分布与理论数值基本吻合，衍射效率达到86%。
|
| 关 键 词： | 衍射光学元件 螺旋相位板 光学涡旋 计算全息 激光直写 |
Performance of high-order spiral phase plate made by direct laser writing lithography |
| |
| Fan Changjiang
,
Xu Jiancheng
,
Ren Zhijun
,
Ying Chaofu
,
Wang Hui.Performance of high-order spiral phase plate made by direct laser writing lithography[J].High Power Laser and Particle Beams,2011,23(12):26-27. |
| |
| Authors: | Fan Changjiang Xu Jiancheng Ren Zhijun Ying Chaofu Wang Hui |
| |
| Affiliation: | 1.Institute of Information Optics,Zhejiang Normal University,Jinhua 321004,China |
| |
| Abstract: | A computer-generated hologram about spiral phase light beam with four topological charges is realized, which is then inputted into spatial light modulators(SLMs). When a plane wave transits through the SLMs, a series of high-order optical vortices occur. In order to improve the diffraction efficiency, a spiral phase plate(SPP) with four topological charges is created by direct laser writing lithography. The theoretical depth of SPP is 1.073 μm and the measured depth is 1.082 μm, showing a manufacture error of no more than 0.83%.The efficiency and beam profile of Fraunhofer diffraction of the SPP are measured with a power meter and a CCD camera. The diffraction efficiency reaches 86% and the energy distribution is in a good agreement with theory. |
| |
| Keywords: | spiral phase plate optical vortex computer-generated hologram direct laser writing |
| 本文献已被 万方数据 等数据库收录！ |
| 点击此处可从《强激光与粒子束》浏览原始摘要信息 |
|
点击此处可从《强激光与粒子束》下载全文 |
