摘要
偏振响应特性是反映光探测器质量的重要参数。陷光探测器(陷光二极管)是低温辐射计的传递探测器。文中对陷光探测器的偏振响应特性进行了测量研究,并提出了对它的数值表述方法。探测器偏振响应特性的测量结果的不确定度达到0.005%。测量结果表明,不同的反射型陷光探测器的偏振响应特性相差很大,在光辐射测量中不容忽视。
Polarization dependency is an important factor reflecting the quality of optical detector. The polarization dependency of the responsivity of trap detector, which comes into use as a transfer detector for cryogenic radiometer, is investigated. Numerical method for description of polarization dependency of the responsivity of optical detector is presented. The uncertainty of the measurement is up to 0.005%. Measurement result shows that the polarization dependency of responsivity of reflection trap detector varies from detector to detector, so it should not be neglected in radiometric measurement.
出处
《计量学报》
CSCD
北大核心
2004年第1期23-26,共4页
Acta Metrologica Sinica
关键词
计量学
辐射度
光探测器
陷光探测器
响应度
偏振
Metrology
Radiometry
Optical detector
Trap detector
Responsivity
Polarization
