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Procedure for simulating divergent-light halos

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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

Publishing year

2003

Language

English

Pages

6559-6563

Publication/Series

Applied Optics

Volume

42

Issue

33

Document type

Journal article

Publisher

Optical Society of America

Topic

  • Biophysics

Status

Published

ISBN/ISSN/Other

  • ISSN: 2155-3165