平的高斯焦点与光子所产生的均相位
Changjie Cheng1, Qing Cao1, Lihua Bai1
1Department of Physics, Shanghai University, Shanghai, 200444, China.
Heliyon
|June 26, 2023
概括
研究人员开发了旋转对称光子的新理论,以最小的强度和相位变化实现统一的焦点. 光学工程的进步提高了成像能力.
科学领域:
- 光学和光子学 在光学和光子学.
- 图像形成 图像形成
- 衍射光学是不同的光学.
背景情况:
- 相当的学生和点扩散函数之间的关系是由富里埃-贝塞尔变换定义的.
- 光子提供了独特的光操纵能力,但需要精确的理论框架来实现最佳性能.
研究的目的:
- 建立用于旋转对称光子的等效瞳孔函数理论.
- 为了获得光学应用的平面化高斯函数的里埃变换.
- 分析这种新光子设计产生的焦点特征.
主要方法:
- 使用福里埃-贝塞尔变换关系来定义等效学生函数.
- 导出一个平面化高斯函数的富里埃变换.
- 数字模拟以评估焦点强度和相位分布.
主要成果:
- 开发的理论准确地描述了旋转对称光子的行为.
- 光子的设计产生了一个焦点,强度和相位分布均.
- 数值结果证实,平坦的高斯场分布与设计函数相匹配,强度和相位不均度分别为约1%和<1/170波长.
结论:
- 相当的瞳孔函数理论为设计旋转对称光子提供了一个强大的框架.
- 平的高斯函数在焦点上得到了有效的实现,显示出高度的统一性.
- 这项研究有助于开发用于精确控制光线的先进光学元件.
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