TY - JOUR
T1 - Alphabetic-Core Assisted Microstructure Fiber Based Plasmonic Biosensor
AU - Haider, Firoz
AU - Aoni, Rifat Ahmmed
AU - Ahmed, Rajib
AU - Chew, Wei Jen
AU - Mahdiraji, Ghafour Amouzad
N1 - Publisher Copyright:
© 2020, Springer Science+Business Media, LLC, part of Springer Nature.
PY - 2020/12/1
Y1 - 2020/12/1
N2 - Light control capability of photonic crystal fiber (PCF) is a unique feature which can be applied to improve biosensing and plasmonic performance. Here, we reported alphabetic-core microstructure fiber-based plasmonic biosensor. Three different alphabetic R-, M-, and S-shaped cores of PCF-based plasmonic microstructures show controllable light propagation to enhance biosensor sensitivity and resolution. The light-guiding properties and sensing performance are investigated numerically using the finite element method (FEM). The proposed R-shaped core (RSC), M-shaped core (MSC), and S-shaped core (SSC) PCF-based plasmonic sensors show the maximum wavelength and amplitude sensitivities of 12,000, 11,000, 10,000 nm/RIU and 478, 533, and 933 RIU−1, respectively, in the refractive index (RI) range of 1.33 to 1.40. The sensors also exhibit promising wavelength resolution of 8.33 × 10−6, 9.09 × 10−6, and 1.0 × 10−6 RIU, with figure of merit (FOM) of 108, 143, and 217 RIU−1 for RSC, MSC, and SSC PCFs, respectively. The tunable sensing performance is also observed in design structures due to controllable light traveling path and their interaction with analytes. The proposed alphabetic-core PCF SPR sensors would be a promising candidate for the application of light controlling, trapping in microscale environment, and biosensing.
AB - Light control capability of photonic crystal fiber (PCF) is a unique feature which can be applied to improve biosensing and plasmonic performance. Here, we reported alphabetic-core microstructure fiber-based plasmonic biosensor. Three different alphabetic R-, M-, and S-shaped cores of PCF-based plasmonic microstructures show controllable light propagation to enhance biosensor sensitivity and resolution. The light-guiding properties and sensing performance are investigated numerically using the finite element method (FEM). The proposed R-shaped core (RSC), M-shaped core (MSC), and S-shaped core (SSC) PCF-based plasmonic sensors show the maximum wavelength and amplitude sensitivities of 12,000, 11,000, 10,000 nm/RIU and 478, 533, and 933 RIU−1, respectively, in the refractive index (RI) range of 1.33 to 1.40. The sensors also exhibit promising wavelength resolution of 8.33 × 10−6, 9.09 × 10−6, and 1.0 × 10−6 RIU, with figure of merit (FOM) of 108, 143, and 217 RIU−1 for RSC, MSC, and SSC PCFs, respectively. The tunable sensing performance is also observed in design structures due to controllable light traveling path and their interaction with analytes. The proposed alphabetic-core PCF SPR sensors would be a promising candidate for the application of light controlling, trapping in microscale environment, and biosensing.
KW - Optical sensors
KW - Photonic crystal fiber
KW - Propagation control
KW - Surface plasmon resonance
UR - http://www.scopus.com/inward/record.url?scp=85087395124&partnerID=8YFLogxK
U2 - 10.1007/s11468-020-01220-9
DO - 10.1007/s11468-020-01220-9
M3 - Article
SN - 1557-1955
VL - 15
SP - 1949
EP - 1958
JO - Plasmonics
JF - Plasmonics
IS - 6
ER -