| 二元衍射微透镜的亚波长结构设计方法 |
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| 引用本文： | 陈思乡 易新建 等. 二元衍射微透镜的亚波长结构设计方法[J]. 光电子．激光, 2001, 12(1): 1-3 |
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| 作者姓名： | 陈思乡 易新建 等 |
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| 作者单位： | 华中科技大学光电子工程系, |
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| 基金项目： | 国家“八六三”计划资助项目! (86 3-4 0 9) |
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| 摘 要： | 本文结合标量衍射理论和等效媒质理论提出了二元衍射微透镜的亚波长设计新方法，根据标量理论位相量化的概念，分析连续浮雕透镜的相移函数，结合等效媒介理论的等效折射率表达方式，可以确定亚波长结构透镜的面型函数。
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| 关 键 词： | 二元光学 亚波长结构 衍射微透镜 设计 |
| 文章编号： | 1005-0086(2001)01-0001-03X |
| 修稿时间： | 2000-04-26 |
The Design of Binary Diffrative Microlens with Subwavelength Structures |
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| CHEN Si-xiang,YI Xin-jian,ZENG Yan-an. The Design of Binary Diffrative Microlens with Subwavelength Structures[J]. Journal of Optoelectronics·laser, 2001, 12(1): 1-3 |
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| Authors: | CHEN Si-xiang YI Xin-jian ZENG Yan-an |
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| Abstract: | Based on the combination of two approximate theories,effective medium theory and scalar diffractive theory,a novel procedure for designing diffractive lens by use of subwavelength structures is discussed.By comparing the phase shift of continuous relief to that of subwavelength structures,the binary profiles of subwavelength lens,which offer high diffractive efficiencies yet require only single step fabrication,could be determined on the basis of the closed-form expression from effective medium theory. |
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| Keywords: | binary optics diffractive microlens subwavelength structures |
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