Add to BibSonomy
Abstract
In this paper, a microdisk resonator (MDR) based on an ${\rm AlN}\! -\! {{\rm PSiO}_2}$ hybrid plasmonic waveguide (HPW) and its refractive index (RI) sensing characteristics are investigated. The plasmonic characteristics of the MDR based on the ${\rm AlN}\! -\! {{\rm PSiO}_2}$ HPW (APHPW-MDR) in near-infrared wavelengths are studied by using the finite element method. Through the structure parameter optimizations, the propagation length (${L}_{\rm prop}$) of the APHPW-MDR is ${\sim}{165}\;{\unicode{x00B5}{\rm m}}$, which is ${\sim}{2.5}$ times as long as that of the MDR based on the AlN HPW (AHPW-MDR). The simulation results show that the quality factor ($Q$) and extinction rate (ER) of the APHPW-MDR are ${\sim}{621.3}$ and ${\sim}{30}\;{\rm dB}$, respectively. The RI sensing sensitivity ($S$) of the RI sensor based on the APHPW-MDR is ${\sim}{276.6}\;{\rm nm/RIU}$. The RI sensor based on the APHPW-MDR has wide application prospects in high-performance biochemical sensing, and it can also be used in integrated optical filters, modulators, switches, routers, and delay circuits.
© 2022 Optica Publishing Group
Full Article | PDF ArticleMore Like This
XiaoLin Liu, Jin Liu, HaiMa Yang, Bo Huang, and GuoHui Zeng
Appl. Opt. 61(23) 6752-6760 (2022)
Abdulhameed Fouad Alkhateeb, Md. Shofiqul Islam, Md. Yeakub Ali, Rownok Jahan Usha, Sanjida Tasnim, Sami Alghamdi, and Md. Aslam Mollah
Appl. Opt. 61(20) 5885-5893 (2022)
Huiji Chen, Binbin Luo, Decao Wu, Xiangwen Yang, Shenghui Shi, Xue Zou, Yujie Li, Shanghai Jiang, and Mingfu Zhao
Appl. Opt. 61(36) 10727-10734 (2022)