Ultra-compact tunable graphene-based plasmonic multimode interference power splitter in mid infrared frequencies

• 来源期刊: 中国科学（信息科学）
• 关键词: graphene multimode interference surface plasmon polaritons power splitter plasmonic integrated circuits
• 年，卷（期）: 2017,（8）
• 页码范围: 207-212
• 页数: 6页
• 语种: 中文
• DOI: 10.1007/s11432-016-0539-6

摘要

In this paper,we propose graphene-based plasmonic multimode interference power splitters with ultra-compact size working in mid infrared range.Further,the arbitrary-ratio 1×2 power splitter with a size of 140 nm×232 nm,where the splitting ratio can be tuned continuously from 1∶1 to 100∶0,is numerically demonstrated.Meanwhile,the graphene-based arbitrary-ratio 1×2 power splitters with different frequencies and chemicM potentials are also investigated.The proposed multimode interference structure with a deep nanoscale footprint might be a fundamental component of the future high density integrated plasmonic circuit or on-chip plasmonic interconnect techniques.