Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
852476 | Optik - International Journal for Light and Electron Optics | 2008 | 5 Pages |
Abstract
In this paper, the double-layer harmonic diffractive element (HDE) structure is investigated and the optimization procedure is given based on the equation of diffraction efficiency of the double-layer diffractive optical element. A new infrared double-layer inverted telephoto with HDE is designed, which can work in the mid- and far-infrared wavebands. The diffraction efficiency of the system at each wavelength in the designed two wavebands is larger than 90%, which improves the image contrast and the imaging quality significantly.
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Engineering (General)
Authors
Chang-Jiang Fan, Zhao-Qi Wang, Mei Zhang, Hai-Ying Fan,