
Lars Gislén
Retired, affiliated researcher

Procedure for simulating divergent-light halos
Author
Summary, in English
Divergent-light halos are halos produced by light from nearby light sources, like street lamps being scattered by small crystals of ice floating in the air. The use of "brute-force" Monte Carlo methods to simulate such halos is extremely inefficient, as most scattered rays will not hit the eye of the observer. I present a new procedure for Monte Carlo simulations of divergent-light halos. This procedure uses rotational symmetries to make a selected sampling of events that greatly improves the computational efficiency of the algorithm. We can typically generate a simulated halo display in minutes using a personal computer, several orders of magnitude more rapid than a simple brute-force method. The algorithm can also optionally generate three-dimensional pictures of divergent-light halo displays. (C) 2003 Optical Society of America
Department/s
- Computational Biology and Biological Physics - Undergoing reorganization
Publishing year
2003
Language
English
Pages
6559-6563
Publication/Series
Applied Optics
Volume
42
Issue
33
Links
Document type
Journal article
Publisher
Optical Society of America
Topic
- Biophysics
Status
Published
ISBN/ISSN/Other
- ISSN: 2155-3165