Stray light correction of array spectroradiometer measurement in ultraviolet

For most of the array spectroradiometer, stray light is significant in UV band. Stray light correction of a UV array spectroradiometer is investigated using optical filters. If a group of filters with continuous bandpass are chosen, stray light contribution due to all the bands can be obtained using...

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Bibliographic Details
Published inJournal of physics. Conference series Vol. 972; no. 1; pp. 12022 - 12027
Main Authors Wu, Zhifeng, Dai, Caihong, Wang, Yanfei, Li, Ling
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.02.2018
Subjects
Algorithms
Arrays
Bandpass filters
Calibration
Incandescent lamps
Irradiance
Light
Numerical analysis
Optical filters
Physics
Production cooperatives
Spectroradiometers
Stray light
Xenon lamps
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Summary:For most of the array spectroradiometer, stray light is significant in UV band. Stray light correction of a UV array spectroradiometer is investigated using optical filters. If a group of filters with continuous bandpass are chosen, stray light contribution due to all the bands can be obtained using a numerical algorithm. The array spectroradiometer with the stray light corrected is used to measure the spectral irradiance of several UV lamps. The measurement results are compared to a double monochromator spectroradiometer. When xenon lamp is the array spectroradiometer calibration lamp, after stray light correction, the difference can be improved from nearly 10% to 2.0% in UVC band. When tungsten lamp is the calibration lamp, the difference can be improved from around 90% to less than 20%.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/972/1/012022