Polarization study in Newtonian telescope components for depolarization parameter correction in atmospheric LiDAR
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Date
2023-06-12
Authors
Sanchez Barrera, Estiven
Torres Fiesco, Nairo
Reina Estupiñán, John Henry
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Abstract
In the present work, an experimental system is implemented, and a theoretical model is built that allows quanti fying atmospheric depolarization in the city of Santiago de Cali, Colombia. The experimental setup uses a LiDAR
coupled to a Polarotor, which allows the separation of the backscattered light into its parallel and perpendicular
polarization components. This device allows the use of a single photomultiplier tube, thus facilitating calibration
procedures. The theoretical model is based on the Mueller formalism and considers the contribution of each op tical element of the LiDAR system on the polarization of the backscattered light. This is achieved by assigning
to each element a Mueller matrix and subsequently calculating the matrix associated with the whole assembly.
The contribution of the optical elements of the system on the depolarization parameter d is determined. The
corrections to the signals obtained are established, so that the data is not altered by the particularities of the
assembly used.
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Citation
Estiven Sánchez Barrera, Nairo Torres Fiesco, John Henry Reina Estupiñán,
"Polarization study in Newtonian telescope components for depolarization
parameter correction in atmospheric LiDAR," Proc. SPIE 12537, Laser Radar
Technology and Applications XXVIII, 1253708 (12 June 2023); doi:
10.1117/12.2663690