Wavelength demultiplexing structure based on arrayed plasmonic slot cavities
Wavelength demultiplexing structure based on arrayed plasmonic slot cavities
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DOI：
10.1364/ol.36.001500
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发表时间：
2011-04-15
期刊：
影响因子：
3.6
通讯作者：
Zhou, Zhiping
中科院分区：
文献类型：
--
作者：
Hu, Feifei;Yi, Huaxiang;Zhou, Zhiping
提出了一种基于阵列金属-绝缘体-金属(MIM)缝隙腔的紧凑型波分复用器结构，并进行了数值模拟。这种结构由一个垂直耦合的总线波导和一系列缝隙腔组成，每个缝隙腔从总线波导处捕获谐振频率处的表面等离子体波，并通过改变其几何参数来调节传输波长。利用腔理论模型设计了该结构的工作波长。此外，通过改变下拉波导的位置和耦合距离，可以获得每个通道的单频传输和可调的传输带宽。提出的基于阵列缝隙腔的结构可用于研制用于大规模光子集成的超紧凑型光波长解复用器。(C)2011年美国光学学会
A compact wavelength demultiplexing structure based on arrayed metal-insulator-metal (MIM) slot cavities is proposed and demonstrated numerically. The structure consists of a bus waveguide perpendicularly coupled with a series of slot cavities, each of which captures SPPs at the resonance frequency from the bus waveguide and tunes the transmission wavelength by changing its geometrical parameters. A cavity theory model is used to design the operating wavelengths of the structure. Moreover, single band transmission of each channel and the adjustable transmission bandwidth can be obtained by altering the drop waveguide positions and the coupling distance. The proposed arrayed slot cavity-based structure could be utilized to develop ultracompact optical wavelength demultiplexing device for large-scale photonic integration. (c) 2011 Optical Society of America