基于谐振波导光栅和共形介质等离子体涂层的窄带传输滤波器

IF 2.3 Q2 OPTICS

Advanced Optical Technologies Pub Date : 2020-11-02 DOI:10.1515/aot-2020-0049

B. Gallinet, Giorgio Quaranta, C. Schneider

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引用次数: 2

摘要

图像传感器上的纳米结构滤波器阵列在微型光谱仪和光谱成像仪中具有广阔的应用前景。在这项工作中，我们报道了用UV纳米压印光刻和共形介质等离子体涂层制备的谐振波导光栅。根据数值模拟的光学测量报告，在可见光范围内传输的共振带宽为20nm。通过数值计算研究了包层厚度和滤波器横向尺寸对谐振特性的影响。最后，研究表明，与其他纳米结构过滤器方法相比，基于保形涂层的几何结构具有非常有效的阻挡率。

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Narrowband transmission filters based on resonant waveguide gratings and conformal dielectric-plasmonic coatings

Abstract Nanostructured filter arrays on image sensors are promising for miniature spectrometers and spectral imagers. In this work, we report on resonant waveguide gratings fabricated by UV nanoimprint lithography and conformal dielectric-plasmonic coatings. Optical measurements in accordance with numerical simulations report on a resonance bandwidth of 20 nm in transmission in the visible range. The impact of cladding thickness and filter lateral size on the resonance properties is investigated with the help of numerical calculations. Finally, it is shown that the proposed geometry based on conformal coatings has a very efficient blocking rate compared to other nanostructured filter approaches.

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来源期刊

Advanced Optical Technologies OPTICS-

CiteScore

4.40

自引率

0.00%

发文量

期刊介绍： Advanced Optical Technologies is a strictly peer-reviewed scientific journal. The major aim of Advanced Optical Technologies is to publish recent progress in the fields of optical design, optical engineering, and optical manufacturing. Advanced Optical Technologies has a main focus on applied research and addresses scientists as well as experts in industrial research and development. Advanced Optical Technologies partners with the European Optical Society (EOS). All its 4.500+ members have free online access to the journal through their EOS member account. Topics: Optical design, Lithography, Opto-mechanical engineering, Illumination and lighting technology, Precision fabrication, Image sensor devices, Optical materials (polymer based, inorganic, crystalline/amorphous), Optical instruments in life science (biology, medicine, laboratories), Optical metrology, Optics in aerospace/defense, Simulation, interdisciplinary, Optics for astronomy, Standards, Consumer optics, Optical coatings.