Physics – Optics
Scientific paper
Dec 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aas...205.6602b&link_type=abstract
American Astronomical Society Meeting 205, #66.02; Bulletin of the American Astronomical Society, Vol. 36, p.1455
Physics
Optics
Scientific paper
A pixel level simulation software is described. It is composed of two modules. The first module applies Fourier optics at each active element of the system to construct the psf at a large variety of wavelengths and spatial locations of the point source. The input is provided by the engineer,s design program (Zemax) in the form of Zernike coefficients and discrete positions. It describe the optical path and the distorsions. The psf properties are compressed and interpolated using shapelets decomposition and neural network techniques. A second module is used for production jobs. It uses the output of the first module to reconstruct the relevant psf and integrate it on the detector pixels. Extended and polychromatic sources are approximated by a combination of monochromatic point sources. Application to the integral field spectrometer is presented. A separate poster presents the application to a slitless grism based instrument.
Bonissent Alain
SNAP Simulation Group Collaboration
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