等离子体互连电路中高效非对称亚波长光栅耦合器的设计

IF 2.5 3区物理与天体物理 Q2 OPTICS

Optics Communications Pub Date : 2025-06-23 DOI:10.1016/j.optcom.2025.132102

Zhenyuan Huang , Zhiqing Zhang , Canran Zhang, Yijing Xu, Qilong Wang

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引用次数: 0

摘要

为了提高等离子体光栅耦合器的单向耦合效率，研究了非对称亚波长光栅耦合结构的设计。在均匀对称光栅耦合器的基础上，设计了一种参数按固定规律变化的啁啾截止光栅耦合器。然后，创新性地采用十六进制编码定义光栅排列规则，并结合遗传算法，设计了结构随机二值化非对称光栅耦合器。经过500次迭代得到的最优二值化光栅耦合器在1550 nm波段的spp单向耦合效率为60.38%。

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Design of efficient asymmetric subwavelength grating coupler for plasmonic interconnect circuits

This paper studies the design of asymmetric subwavelength grating coupling structures aimed at enhancing the unidirectional coupling efficiency of plasmonic grating couplers. Based on uniform symmetric grating couplers, a chirped cut-off grating coupler with parameters that vary according to a fixed rule is designed. Then, by innovatively defining the grating arrangement rules using hexadecimal coding and incorporating the genetic algorithm, a structurally random binarized asymmetric grating coupler is designed. The optimal binarized grating coupler obtained after 500 iterations achieves a unidirectional coupling efficiency of 60.38% for SPPs in the 1550 nm wavelength band.

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来源期刊

Optics Communications 物理-光学

CiteScore

5.10

自引率

8.30%

发文量

681

审稿时长

38 days

期刊介绍： Optics Communications invites original and timely contributions containing new results in various fields of optics and photonics. The journal considers theoretical and experimental research in areas ranging from the fundamental properties of light to technological applications. Topics covered include classical and quantum optics, optical physics and light-matter interactions, lasers, imaging, guided-wave optics and optical information processing. Manuscripts should offer clear evidence of novelty and significance. Papers concentrating on mathematical and computational issues, with limited connection to optics, are not suitable for publication in the Journal. Similarly, small technical advances, or papers concerned only with engineering applications or issues of materials science fall outside the journal scope.