Speaker
Description
Accurate simulation of partially coherent beam transport and coherence evolution is critical for next-generation accelerator-based light sources. In this work, we develop a dedicated numerical approach for partially coherent EUV beamline propagation to support the optical design and optimization of Steady-State Microbunching (SSMB) beamlines under development at Tsinghua University.* A GPU-accelerated mutual optical intensity framework is developed for two-dimensional propagation of partially coherent radiation. Using spatially partitioned diffraction-integral kernels with locally reconstructed paraxial approximation, the method achieves substantial speedup over conventional mutual-intensity and wavefront-based propagation methods while maintaining high accuracy. Complex optical components, including arbitrary curved and rough reflective surfaces, are fully supported for efficient simulation of realistic EUV systems. In summary, the proposed framework provides a practical tool for optical design and end-to-end simulation of EUV beamlines, enabling coherence analysis and accurate light propagation modeling of partially coherent radiation.
Footnotes
- Deng, X. et al. Experimental demonstration of the mechanism of steady-state microbunching. Nature 590, 576–579 (2021).
Funding Agency
This work is supported by the National Natural Science Foundation of China (No.124B2109)
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