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Cavity-enhanced multispectral photodetector using phase-tuned propagation: theory and design

机译：使用相位调谐传播的腔增强多光谱光电探测器：理论与设计

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摘要

We propose and theoretically analyze what we believe to be a novel design of cavity-enhanced photodetectors capable of sensing multiple wavelengths simultaneously in a single pixel. The design is based on phase-tuned propagation of resonant modes in cascaded planar resonant cavities. We show that this concept can be generalized to detect multiple wavelength combinations covering the entire near to far infrared spectrum. Besides its multispectral detection capability, the design also features minimal spectral cross talk and significantly suppressed noise. The intrinsic design versatility and scalability, as well as process compatibility with planar microfabrication, suggest the design’s wide application potential for telecommunications, infrared imaging, and biochemical sensing.
机译：我们提出并从理论上分析了我们认为是能够在单个像素中同时感应多个波长的腔增强光电探测器的新颖设计。该设计基于级联平面谐振腔中谐振模式的相位调谐传播。我们表明，该概念可以推广到检测覆盖整个近红外光谱的多个波长组合。除了具有多光谱检测功能外，该设计还具有最小的光谱串扰和显着抑制的噪声。设计固有的多功能性和可扩展性，以及与平面微细加工的工艺兼容性，表明该设计在电信，红外成像和生化传感领域的广泛应用潜力。

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