4.6 Article

Milled Microchannel-Assisted Open D-Channel Photonic Crystal Fiber Plasmonic Biosensor

Journal

IEEE ACCESS
Volume 9, Issue -, Pages 2924-2933

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/ACCESS.2020.3047509

Keywords

Sensitivity; Gold; Metals; Silicon compounds; Refractive index; Optical surface waves; Lattices; Broad sensing range; low analyte refractive index; plasmonic oscillations; wavelength sensitivity

Funding

  1. National Research Foundation of Korea - Korean Government (Ministry of Science) [ICT-NRF-2020R1A2B5B02002478]

Ask authors/readers for more resources

The proposed SPR-based PCF sensor demonstrates good functionality with high wavelength and amplitude sensitivity, as well as a broad range of analyte detection and high detection accuracy. Numerical investigations show that the sensor is capable of effectively detecting low refractive index analytes.
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 x 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.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.6
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available