OLALA – Optical Lab for Lidar Applications

Moritz Haarig; Esha Semwal; Markus Hartmann; Ronny Engelmann; Dietrich Althausen; Heike Wex; Albert Ansmann; Ulla Wandinger; Andreas Macke

doi:10.1051/epjconf/202636201010

Open Access

Issue		EPJ Web Conf. Volume 362, 2026 31^st International Laser Radar Conference (ILRC 31) Held Together with the 22^nd Coherent Laser Radar Conference (CLRC 22)


Article Number		01010
Number of page(s)		4
Section		Joint CLRC/ILRC Session: New Lidar Technologies and Methods
DOI		https://doi.org/10.1051/epjconf/202636201010
Published online		09 April 2026

EPJ Web of Conferences 362, 01010 (2026)
https://doi.org/10.1051/epjconf/202636201010

OLALA – Optical Lab for Lidar Applications

Moritz Haarig, Esha Semwal, Markus Hartmann, Ronny Engelmann, Dietrich Althausen, Heike Wex, Albert Ansmann, Ulla Wandinger and Andreas Macke

Leibniz Institute for Tropospheric Research, Leipzig, Germany This email address is being protected from spambots. You need JavaScript enabled to view it.

Published online: 9 April 2026

Abstract

We are setting up a new scattering laboratory, the Optical Lab for Lidar Applications (OLALA) to measure the particle depolarization ratio of irregularly shaped mineral dust particles in the exact backscatter direction. For that, we will use size-segregated natural dust samples which will be observed at three wavelengths (355, 532 and 1064 nm) in order to assess the particle's size effect on the spectral slope of the depolarization ratio. The gained knowledge will be applied to a better understanding of particle's size in lidar field observations of mineral dust and to improve optical scattering models dealing with non-spherical particles at a scattering angle of 180°.

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