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低温辐射计的结构优化方案设计
低温辐射计的结构优化方案设计
doi: 10.5768/JAO201536.0303001
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1.
中国科学院机构 通用光学定标与表征技术重点实验室,安徽 合肥 230031;
-
2.
中国电子科技集团公司第四十一研究所,山东 青岛 266555
基金项目:
国防技术基础项目（J2920130004);国家自然科学基金项目（61275173）
摘要: 传统低温辐射计的布儒斯特窗口会对传递探测器的绝对光谱响应率定标产生较大的影响。文中阐述了低温辐射计对传递探测器的传统定标过程；分析定标过程中因布儒斯特窗口及窗口复现导致定标精度降低的原因；提出一种新的定标结构。该结构中低温辐射计和传递探测器安置于同心弧形轨道上，二者通过精密电机的控制可以分时切入定标光路，实现传递探测器相对于低温辐射计的绝对定标。新的定标结构能够完全消除布儒斯特窗口在传递探测器定标过程中的影响，降低测量激光功率约50%的不确定度，可以进一步降低辐射定标溯源基准的不确定度，提高定标的精度。
参考文献
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| 基于低温辐射计的光探测器响应度基准 |
| 林延东,吕亮 |
| 中国计量科学研究院, 北京 100013 |
| Responsivity Standard of Optical Detector Based on the Cryogenic Radiometer |
| LIN Yan-dong,Lü Liang |
| National Institute of Metrology, Beijing 100013, China |
| 摘要 基于低温辐射计建立了一系列激光波长上光探测器响应度测量基准。进行了基准装置性能的研究,应用光辐射有效加热功率检验方法进行了不确定度评估。在氦氖、氩氪离子以及钛蓝宝石激光器的10个波长上测量了作为标准探测器的陷阱探测器的响应度。在氦氖、氩氪离子激光波长测量结果的不确定度达到0.8×10-4,在钛蓝宝石激光器达到1.1×10-4。对标准探测器的面响应均匀性、非线性、偏振响应、角度响应等特性对响应度测量结果的影响进行了研究。 |
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| 关键词 ： 计量学, 辐射度, 光电探测器, 低温辐射计, 响应度 | |||||||||||||||||||||||
| Abstract：Standard of responsivity of optical detector at laser wavelengths is established based on the cryogenic radiometer.Performance of the standard facility is characterized,and the uncertainty evaluation test for the effective radiant heating power is applied.The responsivity of the standard detectors,a group of trap detectors,is measured at ten wavelengths of He-Ne,Ar+Kr+ and Ti sapphire lasers.The measurement uncertainties are 0.8×10-4 at He-Ne and Ar+Kr+ laser wavelengths and reaches 1.1×10-4 at Ti sapphire laser wavelengths.The influence of spatial non-uniformity,non-linearity, polarization dependence,angular dependence on responsivity of the standard detector is investigated. | |||||||||||||||||||||||
| Key words： Metrology Radiometry Optical detector Cryogenic radiometer Responsivity | |||||||||||||||||||||||
参考文献
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［5］Gao Z Z, Wang Z C,Piao D Z, et al. Realization of the Candela by Electrically Calibrated Radiometers［J］. Metrologia, 1983,19(3): 85-92.
［6］JJG 2083-2005光谱辐射亮度、光谱辐射照度计量器具检定系统表［S］.
［7］Foukal Peter V, Hoyt C, Kochling H,et al. Cryogenic absolute radiometer as laboratory irradiantce standards, remote sensing detectors, and pyrohelimoters［J］ Applied Optics, 1990, 29(7): 988-993.
［8］Stock K D,Hofer H. Present state of the PTB primary standard for radiant power based on cryogenic radiometry［J］. Metrologia, 1993,30(4):291-296.
［9］林延东,吕亮,李奇. 低温辐射计光辐射有效加热功率测量的研究［J］. 计量学报, 2009, 30(6A):26-30.
［10］Livigni D J, Cromer C L,Scott T R,et al. Thermal characterization of a cryogenic radiometer and comparison with a laser calorimeter［J］. Metrologia, 1988, 35(6):819-827.
［11］Goebel R,Stock M, Khler R. Report on the international comparison of cryogenic radiometers based on transfer detectors［R］. CCPR,2000.
［12］Lopez M,hofer H, Kueck S.Measurement of the absorptance of a cryogenic radiometer cavity in the visible and near infrared［J］. Metrologia, 2005, 42(5): 400-405.
［13］Touagar O,Rougie B,Coutin J,et al. Measurement of Reflectance of the INM Cryogenic Radiometer Cavity at Several Wavelengths［J］. Metrologia,1998,35(4):387-391.
［14］林延东,姚和军,吕正. 陷光探测器偏振响应特性的研究［J］. 计量学报,2004, 25(1):23-26.
［15］吕亮,林延东. 陷阱探测器面响应均匀性的测量［J］. 计量学报,2009, 30(6A):92-94.
［16］吕亮,林延东. 硅光电二极管角度响应特性的测量［J］. 计量学报,2009, 30(6A):95-98.
［4］Metzdorf J. Network and Traceability of the Radiometric and Photometric Standards at the PTB［J］. Metrologia, 1993, 30(4): 403-408.
［5］Gao Z Z, Wang Z C,Piao D Z, et al. Realization of the Candela by Electrically Calibrated Radiometers［J］. Metrologia, 1983,19(3): 85-92.
［6］JJG 2083-2005光谱辐射亮度、光谱辐射照度计量器具检定系统表［S］.
［7］Foukal Peter V, Hoyt C, Kochling H,et al. Cryogenic absolute radiometer as laboratory irradiantce standards, remote sensing detectors, and pyrohelimoters［J］ Applied Optics, 1990, 29(7): 988-993.
［8］Stock K D,Hofer H. Present state of the PTB primary standard for radiant power based on cryogenic radiometry［J］. Metrologia, 1993,30(4):291-296.
［9］林延东,吕亮,李奇. 低温辐射计光辐射有效加热功率测量的研究［J］. 计量学报, 2009, 30(6A):26-30.
［10］Livigni D J, Cromer C L,Scott T R,et al. Thermal characterization of a cryogenic radiometer and comparison with a laser calorimeter［J］. Metrologia, 1988, 35(6):819-827.
［11］Goebel R,Stock M, Khler R. Report on the international comparison of cryogenic radiometers based on transfer detectors［R］. CCPR,2000.
［12］Lopez M,hofer H, Kueck S.Measurement of the absorptance of a cryogenic radiometer cavity in the visible and near infrared［J］. Metrologia, 2005, 42(5): 400-405.
［13］Touagar O,Rougie B,Coutin J,et al. Measurement of Reflectance of the INM Cryogenic Radiometer Cavity at Several Wavelengths［J］. Metrologia,1998,35(4):387-391.
［14］林延东,姚和军,吕正. 陷光探测器偏振响应特性的研究［J］. 计量学报,2004, 25(1):23-26.
［15］吕亮,林延东. 陷阱探测器面响应均匀性的测量［J］. 计量学报,2009, 30(6A):92-94.
［16］吕亮,林延东. 硅光电二极管角度响应特性的测量［J］. 计量学报,2009, 30(6A):95-98.
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