標題: Broadband Multifunctional Plasmonic Logic Gates
作者: Sang, Yungang
Wu, Xiaojia
Raja, Soniya S.
Wang, Chun-Yuan
Li, Haozhi
Ding, Yufeng
Liu, Dahe
Zhou, Jing
Ahn, Hyeyoung
Gwo, Shangjr
Shi, Jinwei
光電工程學系
Department of Photonics
關鍵字: all-optical logic gates;broadband;curved plasmonic gratings;surface plasmon polaritons
公開日期: 4-Jul-2018
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.
URI: http://dx.doi.org/10.1002/adom.201701368
http://hdl.handle.net/11536/145211
ISSN: 2195-1071
DOI: 10.1002/adom.201701368
期刊: ADVANCED OPTICAL MATERIALS
Volume: 6
Appears in Collections:Articles