Open AccessMultiwavelength differential image motion monitor
Author(s) -
Dale Neimeier,
Denis W. Oesch,
Johnathan Andrews,
Javier Baca,
Scott W. Teare
Publication year - 2002
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.10.000561
Subject(s) - optics , wavelength , physics , differential (mechanical device) , motion (physics) , atmospheric turbulence , image processing , turbulence , image (mathematics) , computer science , computer vision , classical mechanics , thermodynamics
Astronomical seeing measurements are usually made at a single wavelength and extrapolated to other wavelengths of interest using scaling laws that assume a specific energy spectrum for the atmospheric turbulence. We describe a variation of the Differential Image Motion Monitor system that provides a measure of the seeing and evaluation of the scaling law by simultaneously measuring the image motion at three different wavelengths.