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Modelling studies of transmission and scattering of high energy laser radiation under remote continental conditions

Peckhaus, Andreas and Hall, Thomas and Pargmann, Carsten and Duschek, Frank (2018) Modelling studies of transmission and scattering of high energy laser radiation under remote continental conditions. In: Proceedings of SPIE - The International Society for Optical Engineering. SPIE Remote Sensing 2018, 10.-13. Sep. 2018, Berlin.

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Official URL: https://www.spiedigitallibrary.org/conference-proceedings-of-spie/10787/107870G/Modelling-studies-of-transmission-and-scattering-of-high-energy-laser/10.1117/12.2325590.full?SSO=1

Abstract

A numerical model is developed to simulate the angle dependent light scattering. The model is based on Mie theory and uses the complex refractive indices of aerosol particles and rain droplets together with their corresponding experimental number size distributions as input parameters. The laser beam parameters of the high energy laser at the DLR laser transmission test range in Lampoldshausen and the geometry of the detection system are taken into consideration. It is demonstrated that the numerical model accurately predicts the absolute scattered powers obtained by a calibrated multiangle light scattering probe measuring under five different scattering angles. The model is applicable for dry and rainy weather conditions. In addition, Mie calculations are performed to determine the extinction coefficients at 1030 nm. The calculated extinction coefficients are correlated with meteorological parameters (i.e. rainfall intensity and visibility) obtained from different types of instruments. The calculated extinction coefficients are compared with the extinction coefficients derived from laser transmission experiments at 1030 nm. A good agreement between numerical results and measurements is observed under rainy weather conditions.

Item URL in elib:https://elib.dlr.de/126807/
Document Type:Conference or Workshop Item (Speech)
Title:Modelling studies of transmission and scattering of high energy laser radiation under remote continental conditions
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Peckhaus, Andreasandreas.peckhaus (at) dlr.deUNSPECIFIED
Hall, ThomasThomas.Hall (at) dlr.deUNSPECIFIED
Pargmann, CarstenCarsten.Pargmann (at) dlr.dehttps://orcid.org/0000-0003-3688-6360
Duschek, FrankFrank.Duschek (at) dlr.dehttps://orcid.org/0000-0002-1809-0257
Date:9 October 2018
Journal or Publication Title:Proceedings of SPIE - The International Society for Optical Engineering
Refereed publication:Yes
Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Status:Published
Keywords:high energy laser, atmospheric propagation, Rayleigh and Mie scattering, aerosol particles
Event Title:SPIE Remote Sensing 2018
Event Location:Berlin
Event Type:international Conference
Event Dates:10.-13. Sep. 2018
Organizer:SPIE - The International Society for Optics and Photonics
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:fixed-wing aircraft
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Laser Research and Technology
Location: Stuttgart
Institutes and Institutions:Institute of Technical Physics > Atmospheric Propagation and Effect
Deposited By: Peckhaus, Andreas
Deposited On:26 Mar 2019 11:47
Last Modified:26 Mar 2019 11:47

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