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首页> 外文会议>International Conference on Optics and Photonics 2015 >Design and Optimization of High Reflectance Graded Index Optical Filter with Quintic Apodization
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Design and Optimization of High Reflectance Graded Index Optical Filter with Quintic Apodization

机译：五次切趾高反射率梯度折射率光学滤波器的设计与优化

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摘要

Rugate filters are a special kind of graded-index films that may provide advantages in both, optical performance and mechanical properties of the optical coatings. In this work, design and optimization of a high reflection rugate filter having reflection peak at 540nm has been presented which has been further optimized for side-lobe suppression. A suitable number of apodization and matching layers, generated through Quintic function, were added to the basic sinusoidal refractive index profile to achieve high reflectance of around 80% in the rejection window for normal incidence. Smaller index contrast between successive layers in the present design leads to less residual stress in the thin-film stack which enhances the adhesion and mechanical strength of the filter. The optimized results show excellent side lobe suppression achieved around the stopband.
机译：Rugate滤光片是一种特殊的渐变折射率薄膜，可以在光学涂层的光学性能和机械性能方面提供优势。在这项工作中，已经提出了具有在540nm处反射峰的高反射波纹滤波器的设计和优化，该滤波器已被进一步优化以抑制旁瓣。通过Quintic函数生成的适当数量的切趾层和匹配层被添加到基本正弦折射率分布中，以在法向入射的拒绝窗口中获得大约80％的高反射率。在本设计中，连续层之间较小的折射率反差导致薄膜叠层中的残余应力较小，从而增强了过滤器的粘附力和机械强度。优化结果表明，在阻带附近实现了出色的旁瓣抑制。

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  • 来源
  • 会议地点 Kolkata(IN)
  • 作者

    Vemuri SRS Praveen Kumar; Parinam Sunita; Mukesh Kumar; Parinam Krishna Rao; Neelam Kumari; Vinod Karar; Amit L. Sharma;

  • 作者单位

    CSIR-Central Scientific Instruments Organisation, Chandigarh, India, 160030,Academy of Scientific Innovative Research (AcSIR), CSIR-CSIO, Chandigarh;

    CSIR-Central Scientific Instruments Organisation, Chandigarh, India, 160030,Academy of Scientific Innovative Research (AcSIR), CSIR-CSIO, Chandigarh;

    CSIR-Central Scientific Instruments Organisation, Chandigarh, India, 160030,Academy of Scientific Innovative Research (AcSIR), CSIR-CSIO, Chandigarh;

    CSIR-Central Scientific Instruments Organisation, Chandigarh, India, 160030;

    CSIR-Central Scientific Instruments Organisation, Chandigarh, India, 160030,Academy of Scientific Innovative Research (AcSIR), CSIR-CSIO, Chandigarh;

    CSIR-Central Scientific Instruments Organisation, Chandigarh, India, 160030,Academy of Scientific Innovative Research (AcSIR), CSIR-CSIO, Chandigarh;

    CSIR-Central Scientific Instruments Organisation, Chandigarh, India, 160030,Academy of Scientific Innovative Research (AcSIR), CSIR-CSIO, Chandigarh;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Graded index filter; Rugate filters; Quintic apodization function; Quintic matching function;

    机译：分级索引过滤器；反滤镜五次切趾功能；五次匹配功能;

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