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Proceedings Paper

Polarization aberrations caused by fold mirrors in optical systems
Author(s): Ying Zhang; Lin Li; Huijie Zhao
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Paper Abstract

A unified discussion of the polarization aberration theory is presented and Jones arithmetic is studied to calculate the polarization aberrations caused by coated fold mirrors in optical systems. The factor |t| is presented, which affects the polarization aberrations introduced by mirrors. It is proved that the magnitudes of the polarization aberrations increase quadratically with the linear increase of the angle of incidence. The method of character matrix is given to calculate the thin films properties. ZEMAX software is used to analyze the polarization aberrations caused by the fold mirrors in the primary optical system of the resource satellite. Two designs are presented for the coatings of the mirrors and polarization effects are analyzed respectively. According to the results of the study, polarization properties of coated fold mirrors are confirmed and two methods to control the properties have been found. One effective way is to decrease the incident angles on the fold mirrors. Another effective way to control the polarization aberrations is to design appropriate coatings on fold mirrors. It can be seen that coating design plays an important role in polarization aberrations. Therefore, optical thin film designs should be considered carefully while designing optical systems.

Paper Details

Date Published: 12 March 2008
PDF: 9 pages
Proc. SPIE 6624, International Symposium on Photoelectronic Detection and Imaging 2007: Optoelectronic System Design, Manufacturing, and Testing, 66240Y (12 March 2008); doi: 10.1117/12.791098
Show Author Affiliations
Ying Zhang, Beihang Univ. (China)
Lin Li, Beijing Institute of Technology (China)
Huijie Zhao, Beihang Univ. (China)


Published in SPIE Proceedings Vol. 6624:
International Symposium on Photoelectronic Detection and Imaging 2007: Optoelectronic System Design, Manufacturing, and Testing

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