| 大口径多孔透镜离轴成像研究 |
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| 引用本文： | 高仲,马君显,周崇喜,罗先刚,杜春雷,王长涛.大口径多孔透镜离轴成像研究[J].光电工程,2007,34(9):25-29. |
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| 作者姓名： | 高仲 马君显 周崇喜 罗先刚 杜春雷 王长涛 |
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| 作者单位： | 中国科学院光电技术研究所,微细加工光学技术国家重点实验室,四川,成都,610209;深圳大学,先进技术研究中心,广东,深圳,518060;深圳大学,先进技术研究中心,广东,深圳,518060;中国科学院光电技术研究所,微细加工光学技术国家重点实验室,四川,成都,610209 |
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| 基金项目： | 国家自然科学基金
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国家重点基础研究发展计划(973计划) |
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| 摘 要： | 设计并采用微细加工技术制作了直径D=50mm,特征尺寸为10μm的大口径多孔透镜(photon sieve).在一定的视场下采用数值计算和实验方法分析了其聚焦特性和MTF曲线,为克服多孔透镜一级衍射效率较低,成像质量受背景光干扰的影响,采用了同轴和离轴成像实验.实验结果与聚焦特性一致,两种实验方法得出的不同实验结果表明:离轴成像系统效果克服了同轴成像受0级背景光的影响,改善了像质,为很多一级衍射效率较低的衍射透镜成像提供一种新的成像方式.
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| 关 键 词： | 多孔透镜 大口径透镜 离轴成像 聚焦特性 |
| 文章编号： | 1003-501X（2007）09-0025-05 |
| 收稿时间： | 2007/2/2 |
| 修稿时间： | 2007-02-02 |
Off-axis imaging of photon sieve with large aperture |
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| GAO Zhong,MA Jun-xian,ZHOU Chong-xi,LUO Xian-gang,DU Chun-lei,WANG Chang-tao.Off-axis imaging of photon sieve with large aperture[J].Opto-Electronic Engineering,2007,34(9):25-29. |
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| Authors: | GAO Zhong MA Jun-xian ZHOU Chong-xi LUO Xian-gang DU Chun-lei WANG Chang-tao |
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| Abstract: | A photon sieve with parameter of diameter D=50 mm minimum microhole diameter of 10um formed on a layer of metal film supported by a piece of thin glass, was designed and fabricated by means of microfabrication technique. Both focus spot and MTF curves were presented and analyzed in certain View of Field (VOF) in simulated and experimental ways to evaluate its imaging characteristics. Off-axis imaging experiments were carried out using the element to improve the imaging quality, and on-axis imaging experiment is done for comparison. The results show focus spot was in excellent agreement with simulated value and off-axis imaging are better than that of on-axis imaging by getting over the blurry effect caused by the 0-order diffractive wave on background, which could offer a new imaging method for this lens with less energy of 1st-order diffraction. |
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| Keywords: | multiaperture lenses large aperture lenses off-axis imaging focusing characteristics |
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