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Proceedings Paper

Ray tracing, wavefronts, and caustics: use of Shack-Hartmann wavefront sensor for analyzing light propagation
Author(s): Salvador Bosch; Santiago Vallmitjana; Carme Ferran
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Paper Abstract

Wavefront measurements are a key point in the development of imaging techniques. Nowadays, a common tool for these measurements is the Shack-Hartmann sensor, where the results are often given in terms of the Zernike polynomials. The interpretation of the results, as one moves the Shack-Hartmann sensor in the axial zone, is sometimes difficult as it involves the task of visualizing the geometrical propagation of the wavefront. We present a numerical tool based on ray tracing that visualizes wavefronts and caustics as the beam propagates and enables the calculation of the Zernike polynomials at any intermediate stage.

Paper Details

Date Published: 21 August 2009
PDF: 8 pages
Proc. SPIE 7429, Novel Optical Systems Design and Optimization XII, 74290L (21 August 2009); doi: 10.1117/12.826207
Show Author Affiliations
Salvador Bosch, Univ. de Barcelona (Spain)
Santiago Vallmitjana, Univ. de Barcelona (Spain)
Carme Ferran, Univ. de Barcelona (Spain)

Published in SPIE Proceedings Vol. 7429:
Novel Optical Systems Design and Optimization XII
R. John Koshel; G. Groot Gregory, Editor(s)

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