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Proceedings Paper

Application of harmonic diffraction in infrared
Author(s): Qiang Sun; Zhaoqi Wang; Wei Quan; Fengyou Li; Yongjun Xie; Zhenwu Lu; Bo Chen
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Paper Abstract

Harmonic diffractive surface element is successfully introduced to the system of infrared dual band in this paper. It has been simultaneously accomplished that the rectification of the Transverse ray, Lateral color and Longitudinal aberration in both band, wave front aberration less ¼ wave length and Modulation Transfer Function of dual band approaching or attaining the diffraction limit. The properties of action spectrum of harmonic diffractive are between refractive element and diffractive, which debased the demand for technical level. The practical design not only shows that the system is compact, few elements and high rates of transmission but also has better weaken-ray aberrations character and 100% cool diaphragm efficiency. The harmonic diffractive element offers a new component for optics designs.

Paper Details

Date Published: 20 September 2002
PDF: 8 pages
Proc. SPIE 4927, Optical Design and Testing, (20 September 2002); doi: 10.1117/12.471678
Show Author Affiliations
Qiang Sun, Nankai Univ. (China)
Zhaoqi Wang, Nankai Univ. (China)
Wei Quan, Nankai Univ. (China)
Fengyou Li, Changchun Institute of Optics, Fine Mechanics, and Physics (China)
Yongjun Xie, Changchun Institute of Optics, Fine Mechanics, and Physics (China)
Zhenwu Lu, Changchun Institute of Optics, Fine Mechanics, and Physics (China)
Bo Chen, Changchun Institute of Optics, Fine Mechanics, and Physics (China)


Published in SPIE Proceedings Vol. 4927:
Optical Design and Testing
Zhicheng Weng; Jose M. Sasian; Yongtian Wang, Editor(s)

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