Xiyang Zhi, Shikai Jiang, Kai Qiao, Dawei Wang, Ruize Niu, Yun Li. Imaging Characteristic Analysis Method for Large-Aperture Diffractive Optical System[J]. Acta Optica Sinica, 2020, 40(17): 1705002
- Acta Optica Sinica
- Vol. 40, Issue 17, 1705002 (2020)
Fig. 1. Schematic of division of primary diffraction mirror in different directions. (a) Meridian direction; (b) sagittal direction
Fig. 2. 2D Yee meshing method
Fig. 3. Flow chart of proposed method
Fig. 4. Structural diagram of diffractive optical system
Fig. 5. MTF curves of 0° field of view
Fig. 6. MTF analysis results at different wavelengths and fields of view. (a) 0.49 μm, 0°; (b) 0.47 μm, 0°; (c) 0.5 μm, 0.1°; (d) 0.5 μm, 0.2°
Fig. 7. Comparison of calculation speed before and after using fast solution method
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Table 1. Design parameters of diffractive optical system
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Table 2. Aperture of diffractive optical element and size of grid scale
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