Determining Bulk Aerosol Absorption from Off Axis Backscattering using Rayleigh Beacon Laser Pulses
Abstract
Aerosol absorption plays a key role in degrading laser performance in the form of beam attenuation. Laser Environmental Effects Definition and Reference (LEEDR) and High Energy Laser End-to-End Operational Simulation (HELEEOS) modeling packages were created to model total scattered irradiance at given off-axis locations through the use of an off-axis scattering algorithm. Laser energy scattered from a Rayleigh beacon illuminator at 527 nm is measured using a visible camera. The differences in the measured versus predicted phase functions can help draw conclusions on bulk aerosol absorption properties, and lead to better quantification of degradation of laser performance due to aerosols.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 2020
- Accession Number
- AD1102886
Entities
People
- Julie C Grossnickle
Organizations
- Air Force Institute of Technology