MULTIPLE SCATTERING OF LASER LIGHT IN THE ATMOSPHERE
Abstract
A Monte Carlo method is used to calculate the path of photons in a real atmosphere that were emitted by a laser source. The photons are emitted uniformly within a cone by the source. They undergo collisions with the molecules and aerosols in the atmosphere. At each collision either molecular (Rayleigh) scattering or absorption or aerosol (Mie) scattering or absorption may occur. The Mie single scattering function is calculated from the Mie theory for a size distribution of spherical particles. The atmosphere is divided into a number of layers, each of which may have different properties. Reflection from both a target area and the background at the earth's surface is calculated for various target and background albedos assuming a Lambert surface. The radiance at a number of detectors at arbitrary locations within the atmosphere is calculated.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 15, 1968
- Accession Number
- AD0675155
Entities
People
- Charles N. Adams
- George W. Kattawar
- Gilbert N. Plass