Application of harmonic diffraction in infrared

Qiang Sun; Zhaoqi Wang; Wei Quan; Fengyou Li; Yongjun Xie; Zhenwu Lu; Bo Chen

doi:10.1117/12.471678

20 September 2002 Application of harmonic diffraction in infrared

Qiang Sun, Zhaoqi Wang, Wei Quan, Fengyou Li, Yongjun Xie, Zhenwu Lu, Bo Chen

Proceedings Volume 4927, Optical Design and Testing; (2002) https://doi.org/10.1117/12.471678
Event: Photonics Asia, 2002, Shanghai, China

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.

Citation Download Citation

Qiang Sun, Zhaoqi Wang, Wei Quan, Fengyou Li, Yongjun Xie, Zhenwu Lu, and Bo Chen "Application of harmonic diffraction in infrared", Proc. SPIE 4927, Optical Design and Testing, (20 September 2002); https://doi.org/10.1117/12.471678

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