二向色玻璃
光学
解复用器
光电子学
材料科学
法布里-珀罗干涉仪
分束器
光子集成电路
光子学
波导管
二向色滤光片
等离子体子
分路器
波长
物理
激光器
多路复用
计算机科学
电信
多路复用器
作者
Feng Li,Zhenyu Yang,Junjun Shi,Xiaobo He
出处
期刊:Optics Express
[The Optical Society]
日期:2022-09-27
卷期号:30 (21): 37753-37753
被引量:1
摘要
Plasmonic demultiplexers hold promise for the realization of the subwavelength and high-splitting ratio dichroic splitter and have a wide range of applications from optical communication, and manipulation to ultrafast data treatment. However, this vision has not been realized for a long time due to lacking the suitable splitting structure design, which limits its further development of integrated photonic circuits. Here, we demonstrate a plasmonic demultiplexer with subwavelength feature size (0.54 µm) and broadband spectral (620-870 nm) range, and high-splitting ratio (17 dB in experiments and 20 dB in calculations). It consists of two adjacent Fabry-Perot cavities (covered by PMMA polymer) and coupling gratings, which are integrated with the Au waveguide. The relatively simple double cavities design of our device has a simple theoretical analysis and fabrication process. Our work has relevance for various optical applications, such as multiple wavelength photodetectors and optical multichannel interconnects.
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