量子阱红外探测器
光学
响应度
旋光法
极化(电化学)
像素
红外线的
光电子学
材料科学
栅栏
基点
光电探测器
制作
衍射光栅
点间距
物理
量子阱
激光器
化学
物理化学
医学
替代医学
病理
散射
作者
Daniel W. Beekman,James Van Anda
标识
DOI:10.1016/s1350-4495(01)00090-1
摘要
A polarization-sensitive thermal imager has been assembled using a quantum well infrared photodetector (QWIP) focal plane array (FPA) with peak responsivity in the long-wave infrared spectral band near 9 μm. Polarization-dependent responsivity is achieved by etching linear gratings onto each pixel during QWIP FPA fabrication, with adjacent pixels having orthogonal grating orientation. The direct integration of the gratings with the pixels eliminates all pixel registration errors encountered with previous infrared polarimetry instruments. We present here details of the FPA and thermal imaging system design and performance and show examples of polarization-enhanced imagery.
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