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首页> 美国卫生研究院文献>Scientific Reports >High extinction ratio super pixel for long wavelength infrared polarization imaging detection based on plasmonic microcavity quantum well infrared photodetectors
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High extinction ratio super pixel for long wavelength infrared polarization imaging detection based on plasmonic microcavity quantum well infrared photodetectors

机译：基于等离子微腔量子阱红外光电探测器的高消光比超像素长波长红外偏振成像检测

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Polarization imaging detection has its unique advantage in discriminating the man-made objects from natural objects. Grating integrated super pixel for polarization imaging detection can simultaneously obtain the first three elements of the Stokes vector, which is the trend of infrared polarization imaging detection in recent years. Here, we demonstrate the first super pixel for long wavelength infrared polarization imaging detection with the extinction ratio of its four polarization directions more than 100. The measured highest polarization extinction ratio is as high as 136, which is the highest reported value of long wavelength infrared polarization imaging detection super pixel. The mechanism is attributed to the excellent mode selectivity of plasmonic microcavity according to the results of three-dimensional theoretical simulation. The experimental responses of the super pixel with four polarization directions are in good agreement with the Malus’ Law. In addition, the super pixel can accurately resolve the Stokes parameters at the same time. It is expected to develop the super pixel into a new generation of practical high-polarization-discriminating long wavelength infrared focal plane array.
机译：偏振成像检测在将人造物体与自然物体区分开来方面具有其独特优势。用于偏振成像检测的光栅集成超像素可以同时获得Stokes向量的前三个元素，这是近年来红外偏振成像检测的趋势。在这里，我们演示了第一个用于长波长红外偏振成像检测的超像素，其四个偏振方向的消光比均超过100。测得的最高偏振消光比高达136，这是长波长红外的最高报道值偏振成像检测超像素。根据三维理论仿真的结果，该机理归因于等离子体微腔的出色模式选择性。具有四个偏振方向的超级像素的实验响应与马氏定律非常吻合。另外，超级像素可以同时准确解析Stokes参数。期望将超级像素发展为新一代实用的区分高偏振的长波长红外焦平面阵列。

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