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Absolute linearity measurements on a gold-black-coated deuterated L-alanine-doped triglycine sulfate pyroelectric detector

机译:在金黑涂层的氘代L-丙氨酸掺杂的三甘氨酸硫酸盐热释电探测器上的绝对线性测量

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摘要

The nonlinearity characteristics of a commercially available deuterated L-alanine-doped triglycine sulfate (DLATGS) pyroelectric detector were experimentally investigated at high levels of illumination using the National Physical Laboratory detector linearity characterization facility. The detector was shown to exhibit a superlinear response at high levels of illumination. Moreover, the linearity factor was shown to depend on the area of the spot on the detector active area being illuminated, i.e., the incident irradiance. Possible reasons for the observed behavior are proposed and discussed. The temperature coefficient of the response of the DLATGS pyroelectric detector was measured and found to be higher than (+2.5percent deg C)~(-1). This large and positive temperature coefficient of response is the most likely cause of the superlinear behavior of the DLATGS pyroelectric detector.
机译:使用国家物理实验室检测器线性表征设备,在高光照水平下,通过实验研究了市售氘代L-丙氨酸掺杂的硫酸三甘氨酸硫酸盐(DLATGS)热电探测器的非线性特性。该检测器在高照度下表现出超线性响应。此外,线性因子被显示为取决于被照明的检测器有效区域上的光斑的面积,即入射辐照度。提出并讨论了观察到的行为的可能原因。测量了DLATGS热释电探测器响应的温度系数,发现其高于(+ 2.5%℃)〜(-1)。这种大而正的响应温度系数是DLATGS热释电探测器超线性行为的最可能原因。

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  • 来源
    《Applied optics》 |2008年第21期|共6页
  • 作者

    E. Theocharous;

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  • 正文语种 eng
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