Plasmonic analogue of geometric diodes realizing asymmetric optical transmission

doi:10.1364/ol.397601

CIOMP OpenIR

	Plasmonic analogue of geometric diodes realizing asymmetric optical transmission
	Z. Zheng,M. Elkabbash,J. H. Zhang and C. L. Guo
	2020
发表期刊	Optics Letters
ISSN	0146-9592
卷号	45 期号:14 页码:3933-3936
摘要	Geometric diodes represent a relatively new class of diodes used in rectennas that rely on the asymmetry of a conducting thin film. Here, we numerically investigate a plasmonic analogue of geometric diodes to realize nanoscale optical asymmetric transmission. The device operates based on spatial symmetry breaking that relies on a unique property of surface plasmon polaritons (SPPs), namely, adiabatic nanofocusing. We show that the structure can realize onchip asymmetric electromagnetic transmission with a total dimension of similar to 2 mu m x 6 mu m. We demonstrate a signal contrast of 0.7 and an asymmetric optical transmission ratio of 4.77 dB. We investigate the origin of the asymmetric transmission and show that it is due mainly to asymmetric out-coupling of SPPs to far-field photons. We highlight the role of evanescent field coupling of SPPs in undermining the asymmetric transmission efficiency and show that by adjusting the plasmonic waveguide dimensions, a si gnal contrast of 0.94 and an asymmetric optical transmission ratio of 5.18 dB can be obtained. Our work presents a new paradigm for on-chip nanoscale asymmetric optical transmission utilizing the unique properties of SPPs. (C) 2020 Optical Society of America
DOI	10.1364/ol.397601
URL	查看原文
收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/64794
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. Zheng,M. Elkabbash,J. H. Zhang and C. L. Guo. Plasmonic analogue of geometric diodes realizing asymmetric optical transmission[J]. Optics Letters,2020,45(14):3933-3936.
APA	Z. Zheng,M. Elkabbash,J. H. Zhang and C. L. Guo.(2020).Plasmonic analogue of geometric diodes realizing asymmetric optical transmission.Optics Letters,45(14),3933-3936.
MLA	Z. Zheng,M. Elkabbash,J. H. Zhang and C. L. Guo."Plasmonic analogue of geometric diodes realizing asymmetric optical transmission".Optics Letters 45.14(2020):3933-3936.

条目包含的文件		下载所有文件
文件名称/大小	文献类型	版本类型	开放类型	使用许可
Plasmonic analogue o（609KB）	期刊论文	出版稿	开放获取	CC BY-NC-SA	浏览下载