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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 19 — Jul. 1, 2011
  • pp: 3135–3144

Optical distortion evaluation of an aerodynamically heated window using the interfacial fluid thickness concept

Haosu Xiao, Zhile Wang, and Zhigang Fan  »View Author Affiliations

Applied Optics, Vol. 50, Issue 19, pp. 3135-3144 (2011)

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The interfacial fluid thickness (IFT) concept was used to develop a harmonic-mean refractive index gradient magnitude threshold to retrieve the high refractive index gradient regions of an aerodynamically heated window. The retrieved high-gradient regions were used to reconstruct the refractive index field of the window. The numerical three-dimensional optical distortion evaluation was conducted for both the reconstructed and the original refractive index fields of the window using the ray-tracing program based on a recursive algorithm. Wave aberration results show that the methodology based on the IFT concept reduces the refractive index information required to capture the essential optical distortion of the window. The method can also be used for numerically evaluating the optical distortion of the window.

© 2011 Optical Society of America

OCIS Codes
(000.4430) General : Numerical approximation and analysis
(080.2710) Geometric optics : Inhomogeneous optical media
(080.2720) Geometric optics : Mathematical methods (general)
(110.3000) Imaging systems : Image quality assessment

Original Manuscript: January 10, 2011
Revised Manuscript: April 10, 2011
Manuscript Accepted: May 2, 2011
Published: June 21, 2011

Haosu Xiao, Zhile Wang, and Zhigang Fan, "Optical distortion evaluation of an aerodynamically heated window using the interfacial fluid thickness concept," Appl. Opt. 50, 3135-3144 (2011)

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