| Si_3N_4波导上的费涅尔透镜 |
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| 引用本文： | 蔡德水,管秀荣,李树荣,胡鸿章.Si_3N_4波导上的费涅尔透镜[J].光学学报,1989,9(10):938-943. |
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| 作者姓名： | 蔡德水 管秀荣 李树荣 胡鸿章 |
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| 作者单位： | 天津大学精密仪器工程系
(蔡德水，管秀荣，李树荣)，天津大学精密仪器工程系(胡鸿章) |
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| 基金项目： | 国家自然科学基金资助的项目 |
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| 摘 要： | 本文提出一种新型的费涅尔波导透镜.它不仅具有衍射受限的聚焦特性,而且有与理想费涅尔波导透镜几乎一样的效率,并使工艺简化.在氮化硅波导上进行的工艺实验表明,实验结果与理论分析具有较好的一致性.
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| 关 键 词： | 集成光学 波导 费涅尔透镜 |
Fresnel lenses in silicon nitride waveguides |
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| CAI DESHUI. GUAN XIURONQ,LI SHURONG AND Hu HONGZHANG.Fresnel lenses in silicon nitride waveguides[J].Acta Optica Sinica,1989,9(10):938-943. |
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| Authors: | CAI DESHUI GUAN XIURONQ LI SHURONG AND Hu HONGZHANG |
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| Abstract: | An improved Fresnel waveguide lens is presented. It not only exhibits theoretically excellent focusing characteristics and has almost the same efficiency as that of ideal Fresnel lens, but also simplifies the mask process. We give experimental results concerning these lenes (f/D = 5, 2mm aperture) in silicon nitride waveguides. Nearly diffraction limited focusing characteristics and high efficiency (60%) were experi mentally obtained. The experiment results are in good agrement with theoretical analysis. |
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| Keywords: | integrated optics waveguide Fregnel lens |
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