中国科学院长春光学精密机械与物理研究所

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	Adjoint Algorithm Design of Selective Mode Reflecting Metastructure for BAL Applications
	Z. Li, X. Y. Zhang, C. Qiu, Y. S. Xu, Z. P. Zhou, Z. Y. Wei, Y. M. Qiao, Y. Y. Chen, Y. B. Wang, L. Liang, Y. X. Lei, Y. Song, P. Jia, Y. G. Zeng, L. Qin, Y. Q. Ning and L. J. Wang
	2024
发表期刊	Nanomaterials
卷号	14期号:9页码:17
摘要	Broad-area lasers (BALs) have found applications in a variety of crucial fields on account of their high output power and high energy transfer efficiency. However, they suffer from poor spatial beam quality due to multi-mode behavior along the waveguide transverse direction. In this paper, we propose a novel metasurface waveguide structure acting as a transverse mode selective back-reflector for BALs. In order to effectively inverse design such a structure, a digital adjoint algorithm is introduced to adapt the considerably large design area and the high degree of freedom. As a proof of the concept, a device structure with a design area of 40 x 20 mu m2 is investigated. The simulation results exhibit high fundamental mode reflection (above 90%), while higher-order transverse mode reflections are suppressed below 0.2%. This is, to our knowledge, the largest device structure designed based on the inverse method. We exploited such a device and the method and further investigated the device's robustness and feasibility of the inverse method. The results are elaborately discussed.
DOI	10.3390/nano14090787
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收录类别	SCI
语种	英语
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文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/68806
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Z. Li, X. Y. Zhang, C. Qiu, Y. S. Xu, Z. P. Zhou, Z. Y. Wei, Y. M. Qiao, Y. Y. Chen, Y. B. Wang, L. Liang, Y. X. Lei, Y. Song, P. Jia, Y. G. Zeng, L. Qin, Y. Q. Ning and L. J. Wang. Adjoint Algorithm Design of Selective Mode Reflecting Metastructure for BAL Applications[J]. Nanomaterials,2024,14(9):17.
APA	Z. Li, X. Y. Zhang, C. Qiu, Y. S. Xu, Z. P. Zhou, Z. Y. Wei, Y. M. Qiao, Y. Y. Chen, Y. B. Wang, L. Liang, Y. X. Lei, Y. Song, P. Jia, Y. G. Zeng, L. Qin, Y. Q. Ning and L. J. Wang.(2024).Adjoint Algorithm Design of Selective Mode Reflecting Metastructure for BAL Applications.Nanomaterials,14(9),17.
MLA	Z. Li, X. Y. Zhang, C. Qiu, Y. S. Xu, Z. P. Zhou, Z. Y. Wei, Y. M. Qiao, Y. Y. Chen, Y. B. Wang, L. Liang, Y. X. Lei, Y. Song, P. Jia, Y. G. Zeng, L. Qin, Y. Q. Ning and L. J. Wang."Adjoint Algorithm Design of Selective Mode Reflecting Metastructure for BAL Applications".Nanomaterials 14.9(2024):17.

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