Broadband Multifunctional Plasmonic Logic Gates

被引：39

作者：

Sang, Yungang ^{[1
]}

Wu, Xiaojia ^{[1
]}

Raja, Soniya S. ^{[2
]}

Wang, Chun-Yuan ^{[2
]}

Li, Haozhi ^{[1
]}

Ding, Yufeng ^{[1
]}

Liu, Dahe ^{[1
]}

Zhou, Jing ^{[1
]}

Ahn, Hyeyoung ^{[3
]}

Gwo, Shangjr ^{[2
,4
]}

Shi, Jinwei ^{[1
]}

机构：

[1] Beijing Normal Univ, Dept Phys & Appl Opt, Beijing Area Major Lab, Beijing 100875, Peoples R China

[2] Natl Tsing Hua Univ, Dept Phys, Hsinchu 30013, Taiwan

[3] Natl Chiao Tung Univ, Dept Photon, Hsinchu 30010, Taiwan

[4] Natl Synchrotron Radiat Res Ctr, Hsinchu 30076, Taiwan

来源：

ADVANCED OPTICAL MATERIALS | 2018年 / 6卷 / 13期

基金：

中国国家自然科学基金;

关键词：

all-optical logic gates; broadband; curved plasmonic gratings; surface plasmon polaritons; 2-DIMENSIONAL PHOTONIC CRYSTALS; OPTICS; LIGHT; OPERATIONS;

D O I：

10.1002/adom.201701368

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Plasmonic logic gates provide a promising platform to realize diffraction-unlimited all-optical logic circuits. However, previous plasmonic logic gates suffer from narrow bandwidth and high loss. Here, broadband plasmonic logic gates are proposed and demonstrated using a unique design based on curved silver gratings. These logic gates can maintain a high intensity contrast ratio (29 dB) under front optical illumination. And, the broadband feature is achieved due to the feature of zero optical path difference from different positions of the curved grating to the output port. All the seven fundamental logic gates are demonstrated. In addition, different types of logic gates can be realized using the same device configuration. The possibility of multifunctionality makes these logic gates easy for device fabrication and system integration.

引用

页数：6

共 27 条

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