折射率
光子晶体
谐振器
同心的
材料科学
光学
消光比
灵敏度(控制系统)
光电子学
物理
波长
电子工程
几何学
数学
工程类
作者
Bingyao Shi,Chen Xiao,Yuanyuan Cai,Qi Kang,Yiquan Wang
出处
期刊:Journal of The Optical Society of America B-optical Physics
[Optica Publishing Group]
日期:2023-08-23
卷期号:40 (9): 2462-2462
摘要
A high-performance photonic crystal (PhC) concentric dual-microring resonator (PhCCDMRR) for refractive index sensing is proposed in this paper. It confines the energy into PhC air holes to enhance the light–matter interaction, and the increased modal area of the concentric rings improves the sensing sensitivity. The slow-light effect near the photonic bandgap results in a PhC waveguide with a maximum group index of 18.2. In the transmission spectrum, a high extinction ratio of 22 dB is achieved. This sensor obtains a refractive index (RI) sensitivity of 265 nm/RIU (RI unit) using sodium chloride solution as samples, which has promising applications in RI sensing.
科研通智能强力驱动
Strongly Powered by AbleSci AI