Implementation and uncertainty evaluation of spectral stray light correction by Zong’s method

Autor: Maximilian Franke, Saulius Nevas, Karsten Bothe, Carsten Schinke
Rok vydání: 2019
Předmět:
Zdroj: Applied Optics. 58:9998
ISSN: 2155-3165
1559-128X
0003-6935
DOI: 10.1364/ao.58.009998
Popis: We present a guide to the implementation and uncertainty evaluation for spectral stray light corrections according to the widely used method as proposed by Zong et al. [Appl. Opt.45, 1111 (2006)APOPAI0003-693510.1364/AO.45.001111]. The uncertainty analysis is based on the Monte Carlo approach in accordance with the Guide to the Expression of Uncertainty in Measurement (JCGM, Paris, 2008). We show that significant uncertainty contributions result from drifts of the spectrometer's dark signal and the width of the in-band region selected for shaping stray light distribution functions. Additionally, a simplified method for estimating these uncertainty contributions is presented, which does not require a complex Monte Carlo analysis. We also show that stray light correction may introduce correlations with respect to wavelength.
Databáze: OpenAIRE