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Published on: June 9, 2016
[Spectral calibration for the large aperture infrared radiometer]
Zhao Ye1, Zhi Wan, Xian-Sheng Li
1Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China. sunyeath@gmail.com
Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|September 29, 2012
Summary
This study presents a novel spectral calibration method for large aperture infrared radiation facilities. The developed radiometer achieved measurement uncertainty better than 3.4%, enhancing infrared detector calibration accuracy.
Area of Science:
- Infrared technology
- Optical metrology
- Detector physics
Context:
- Accurate spectral calibration is crucial for large aperture infrared radiation facilities.
- Existing calibration methods may lack precision for broad spectral ranges.
- Development of advanced radiometers is essential for high-fidelity measurements.
Purpose:
- To introduce and validate a spectral calibration method for a large aperture infrared radiation facility.
- To develop and test a radiometer system for spectral responsivity measurements.
- To assess the performance and uncertainty of the established calibration facility.
Summary:
- A spectral calibration method and facility were established for large aperture infrared radiation.
- A radiometer incorporating cavity pyroelectric and HgCdTe detectors was developed.
- Relative spectral responsivity of HgCdTe detectors was calibrated using cavity pyroelectric detectors, with system uncertainty below 3.4%.
Impact:
- Provides a validated method for precise spectral calibration of infrared facilities.
- Improves the accuracy of infrared detector characterization, particularly for HgCdTe detectors.
- Contributes to advancements in infrared metrology and radiation measurement standards.
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