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DOE OSTI · 2222685

Mutual optical intensity propagation through non-ideal two-dimensional mirrors

Meng, Xiangyu·Wang, Yong·Shi, Xianbo·Ren, Junchao·Sun, Weihong·Cao, Jiefeng·Li, Junqin·Tai, Renzhong
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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 twodimensional (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 $\times$ 100 elements gives less than 0.4% deviation from that with 250 $\times$ 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.

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73 NUCLEAR PHYSICS AND RADIATION PHYSICSmutual optical intensitypartially coherent lightsynchrotron beamlinetwo-dimensional mirrors

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Meng, Xiangyu, Wang, Yong, Shi, Xianbo, Ren, Junchao, Sun, Weihong, Cao, Jiefeng, Li, Junqin, Tai, Renzhong. 2023-08-23. Mutual optical intensity propagation through non-ideal two-dimensional mirrors. https://doi.org/10.1107/s1600577523006343

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