1. Mutual optical intensity propagation through non-ideal two-dimensional mirrors.
- Author
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Xiangyu Meng, Yong Wang, Xianbo Shi, Junchao Ren, Weihong Sun, Jiefeng Cao, Junqin Li, and Renzhong Tai
- Subjects
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LIGHT propagation , *BEAM optics , *SYNCHROTRON radiation , *COHERENT radiation , *MIRRORS , *TWO-dimensional models , *COHERENCE (Optics) - Abstract
The mutual optical intensity (MOI) model is a partially coherent radiation propagation tool that can sequentially simulate beamline optics and provide beam intensity, local degree of coherence and phase distribution at any location along a beamline. This paper extends the MOI model to non-ideal two-dimensional (2D) optical systems, such as ellipsoidal and toroidal mirrors with 2D figure errors. Simulation results show that one can tune the trade-off between calculation efficiency and accuracy by varying the number of wavefront elements. The focal spot size of an ellipsoidal mirror calculated with 100 × 100 elements gives less than 0.4% deviation from that with 250 × 250 elements, and the computation speed is nearly two orders of magnitude faster. Effects of figure errors on 2D focusing are also demonstrated for a non-ideal ellipsoidal mirror and by comparing the toroidal and ellipsoidal mirrors. Finally, the MOI model is benchmarked against the multi-electron Synchrotron Radiation Workshop (SRW) code showing the model's high accuracy. [ABSTRACT FROM AUTHOR]
- Published
- 2023
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