Affiliation:
1. Henan Normal University
2. Henan Key Laboratory of Optoelectronic Sensing Integrated Application
3. Academician Workstation of Electromagnetic Wave Engineering of Henan
Abstract
In this paper, a microdisk resonator (MDR) based on an
A
l
N
−
P
S
i
O
2
hybrid plasmonic waveguide (HPW) and its refractive index (RI) sensing characteristics are investigated. The plasmonic characteristics of the MDR based on the
A
l
N
−
P
S
i
O
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
p
r
o
p
) of the APHPW-MDR is
∼
165
µ
m
, which is
∼
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
∼
621.3
and
∼
30
d
B
, respectively. The RI sensing sensitivity (
S
) of the RI sensor based on the APHPW-MDR is
∼
276.6
n
m
/
R
I
U
. 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.
Funder
Key Scientific Research Projects of Higher Education Institutions in Henan Province
Natural Science Foundation of Henan Province
Science and Technology Project of Henan Province
Ph.D. Research Project of Henan Normal University
Training Program for Young Teachers of Henan Province
National Natural Science Foundation of China
Subject
Atomic and Molecular Physics, and Optics,Engineering (miscellaneous),Electrical and Electronic Engineering
Cited by
2 articles.
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