TY - JOUR
T1 - Milled Microchannel-Assisted Open D-Channel Photonic Crystal Fiber Plasmonic Biosensor
AU - Anik, M. Hussayeen Khan
AU - Isti, M. Ifaz Ahmad
AU - Islam, S. M.Riazul
AU - Mahmud, Sakib
AU - Talukder, Hriteshwar
AU - Piran, Md Jalil
AU - Biswas, Shovasis Kumar
AU - Kwak, Kyung Sup
N1 - Funding Information:
This work was supported by the National Research Foundation of Korea-Grant funded by the Korean Government (Ministry of Science) under Grant ICT-NRF-2020R1A2B5B02002478.
Publisher Copyright:
© 2013 IEEE.
PY - 2021/1/7
Y1 - 2021/1/7
N2 - A surface plasmon resonance (SPR) based photonic crystal fiber (PCF) sensor having a milled microchannel, and an open D-channel has been proposed in this paper. The sensor shows good functionality in the wide sensing range of 1.14-1.36 Refractive Index Units (RIU) of the analyte, having the capability to detect low refractive index (RI). The Finite Element Method (FEM) based numerical investigations dictate that the proposed sensor has been able to gain a maximum wavelength sensitivity of 53,800 nm/RIU according to the wavelength interrogation technique. The amplitude interrogations show that the sensor has the highest amplitude sensitivity of 328 RIU-1. The highest FOM (Figure of Merit) has been found to be 105 RIU-1. The sensor evinces a minimum wavelength resolution of $1.86\times 10 ^{-6}$ RIU, which secures high detection accuracy. A circular perfectly matched layer (PML) is implemented in the sensor's outermost layer as a boundary condition to absorb surface radiations. Gold is the plasmonic metal, while TiO2 acts as the adhesive layer for gold attachment on silica. Due to the high sensitivity with a broad range of analyte detection, the sensor is well suited for practical biochemical detection purposes.
AB - A surface plasmon resonance (SPR) based photonic crystal fiber (PCF) sensor having a milled microchannel, and an open D-channel has been proposed in this paper. The sensor shows good functionality in the wide sensing range of 1.14-1.36 Refractive Index Units (RIU) of the analyte, having the capability to detect low refractive index (RI). The Finite Element Method (FEM) based numerical investigations dictate that the proposed sensor has been able to gain a maximum wavelength sensitivity of 53,800 nm/RIU according to the wavelength interrogation technique. The amplitude interrogations show that the sensor has the highest amplitude sensitivity of 328 RIU-1. The highest FOM (Figure of Merit) has been found to be 105 RIU-1. The sensor evinces a minimum wavelength resolution of $1.86\times 10 ^{-6}$ RIU, which secures high detection accuracy. A circular perfectly matched layer (PML) is implemented in the sensor's outermost layer as a boundary condition to absorb surface radiations. Gold is the plasmonic metal, while TiO2 acts as the adhesive layer for gold attachment on silica. Due to the high sensitivity with a broad range of analyte detection, the sensor is well suited for practical biochemical detection purposes.
KW - Broad sensing range
KW - low analyte refractive index
KW - plasmonic oscillations
KW - wavelength sensitivity
UR - http://www.scopus.com/inward/record.url?scp=85098755713&partnerID=8YFLogxK
U2 - 10.1109/ACCESS.2020.3047509
DO - 10.1109/ACCESS.2020.3047509
M3 - Article
AN - SCOPUS:85098755713
VL - 9
SP - 2924
EP - 2933
JO - IEEE Access
JF - IEEE Access
SN - 2169-3536
M1 - 9308904
ER -
