@inproceedings{d0bd83d612d44c4aa0d28c83258e3380,
title = "Study of wavefront error and polarization of a side mounted infrared window",
abstract = "The wavefront error and polarization of a side mounted infrared window made of ZnS are studied. The Infrared windows suffer from temperature gradient and stress during their launch process. Generally, the gradient in temperature changes the refractive index of the material whereas stress produces deformation and birefringence. In this paper, a thermal finite element analysis (FEA) of an IR window is presented. For this purpose, we employed an FEA program Ansys to obtain the time-varying temperature field. The deformation and stress of the window are derived from a structural FEA with the aerodynamic force and the temperature field previously obtained as being the loads. The deformation, temperature field, stress field, ray tracing and Jones Calculus are used to calculate the wavefront error and the change of polarization state.",
keywords = "Aero-optic effect, Birefringence, FEA, IR window, Ray tracing, Wavefront error",
author = "Jiaguo Liu and Lin Li and Xinqi Hu and Xin Yu",
year = "2008",
doi = "10.1117/12.791193",
language = "English",
isbn = "9780819467669",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
booktitle = "International Symposium on Photoelectronic Detection and Imaging 2007",
note = "International Symposium on Photoelectronic Detection and Imaging, ISPDI 2007: Optoelectronic System Design, Manufacturing, and Testings ; Conference date: 09-09-2007 Through 12-09-2007",
}