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Proceedings Paper

Modeling interferometers with lens design software: beyond ray-based approaches
Author(s): Bryan D. Stone; Kevin P. Thompson
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Paper Abstract

There are a variety of aspects of interferometers that can be well-modeled by using rays. For example, ray-based models allow predictions to be made regarding the changes to a measurement when aberrations are introduced into the input wavefront. However, there are other aspects that are more difficult (or impossible) to model well with ray-based approaches. For instance, when a surface under test is not conjugate to the detector, the effects due to diffraction from the edge of the surface cannot be modeled with ray-based approaches. Modern lens design software generally includes tools for modeling beam propagation. These tools can be used to go beyond conventional ray-based modeling of interferometers. In this paper, we demonstrate the utility of these beam propagation tools by modeling various aspects of a point-diffraction interferometer that go beyond solely ray-based approaches.

Paper Details

Date Published: 1 October 2009
PDF: 11 pages
Proc. SPIE 7427, Optical Modeling and Performance Predictions IV, 74270A (1 October 2009); doi: 10.1117/12.826665
Show Author Affiliations
Bryan D. Stone, Optical Research Associates (United States)
Kevin P. Thompson, Optical Research Associates (United States)

Published in SPIE Proceedings Vol. 7427:
Optical Modeling and Performance Predictions IV
Mark A. Kahan, Editor(s)

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