Comparison of different algorithms and programming languages in the diffraction calculation for a coronagraph stray light analysis

Details Comparison of different algorithms and programming languages in the diffraction calculation for a coronagraph stray light analysis Comparison of different algorithms and programming languages in the diffraction calculation for a coronagraph stray light analysis

Aug 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005spie.5901..191l&link_type=abstract

Solar Physics and Space Weather Instrumentation. Edited by Fineschi, Silvano; Viereck, Rodney A. Proceedings of the SPIE, Volume

Physics

Scientific paper

In order to obtain an image of the solar corona, coronagraph optical design needs to be optimized with respect to stray light reduction. Despite the accurate optical design, some stray light is present on the focal plane in addition to the coronal signal. The stray light level has to be estimated in order to test the quality of the optical design. The stray light is given by scattering off the surfaces of the optical elements and by diffraction from the instrument apertures. In order to estimate the stray light level on the focal plane, a diffraction calculation is necessary. In this paper we describe the diffraction calculation for a coronagraph with an innovative stray light reduction design. For the same optical configuration we used two different algorithms, based on different approaches to Fresnel diffraction computation. By using the Fresnel-Kirchhoff scalar theory we developed an algorithm, and we used it to write codes in IDL (Interactive Data Language, by Research System Inc.), and C programming languages. By using the GLAD (General Laser Analysis and Design, by AOR) software, which diffraction algorithm is based on the principles of Fourier optics, we wrote a further code. In this paper we compare the results of the different codes and we discuss their efficiencies.

Affiliated with

Also associated with

No associations

Rating

Comparison of different algorithms and programming languages in the diffraction calculation for a coronagraph stray light analysis does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Comparison of different algorithms and programming languages in the diffraction calculation for a coronagraph stray light analysis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Comparison of different algorithms and programming languages in the diffraction calculation for a coronagraph stray light analysis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-801740