Simulation and analysis of atmospheric scattering in stray light testing for point source transmittance

We propose a full-band model to quantitatively calculate terrestrial atmospheric scattering in stray light testing based on the Monte Carlo algorithm. Measurements are conducted using two classifications of air cleanliness at off-axis angles from 35° to 90°. Corresponding simulations of Mie scatteri...

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Bibliographic Details
Published in:Applied optics (2004) 2021-01, Vol.60 (2), p.232
Main Authors: Ma, Zhanpeng, Chen, Qinfang, Wang, Hu
Format: Article
Language:English
Subjects:
Air cleanliness
Algorithms
Atmospheric scattering
Beams (radiation)
Collimation
Computer simulation
Diameters
Mie scattering
Rayleigh scattering
Stray light
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Summary:We propose a full-band model to quantitatively calculate terrestrial atmospheric scattering in stray light testing based on the Monte Carlo algorithm. Measurements are conducted using two classifications of air cleanliness at off-axis angles from 35° to 90°. Corresponding simulations of Mie scattering and Rayleigh scattering are used for a comparison with the measured values. The relative root mean square deviation of the simulation from the measurement result is 3.72% and 24.1% for Mie scattering and Rayleigh scattering, respectively. This exhibits excellent agreement between the measured and predicted values for a 26° full-angle baffle when illuminated by a 550 mm diameter collimated beam.
ISSN:1559-128X
2155-3165
DOI:10.1364/AO.409656