TY - JOUR
T1 - Copper-graphene-based photonic crystal fiber plasmonic biosensor
AU - Rifat, Ahmmed A.
AU - Mahdiraji, G. Amouzad
AU - Ahmed, Rajib
AU - Chow, Desmond M.
AU - Sua, Y. M.
AU - Shee, Y. G.
AU - Adikan, F. R.Mahamd
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2016/2
Y1 - 2016/2
N2 - We propose a photonic crystal fiber surface plasmon resonance biosensor where the plasmonic metal layer and the sensing layer are placed outside the fiber structure, which makes the sensor configuration practically simpler and the sensing process more straightforward. Considering the long-term stability of the plasmonic performance, copper (Cu) is used as the plasmonic material, and graphene is used to prevent Cu oxidation and enhance sensing performance. Numerical investigation of guiding properties and sensing performance is performed by using a finite-element method. The proposed sensor shows average wavelength interrogation sensitivity of 2000 nm/refractive index unit (RIU) over the analyte refractive indices ranging from 1.33 to 1.37, which leads to a sensor resolution of 5 × 10-5 RIU. Due to the simple structure and promising results, the proposed sensor could be a potential candidate for detecting biomolecules, organic chemicals, and other analytes.
AB - We propose a photonic crystal fiber surface plasmon resonance biosensor where the plasmonic metal layer and the sensing layer are placed outside the fiber structure, which makes the sensor configuration practically simpler and the sensing process more straightforward. Considering the long-term stability of the plasmonic performance, copper (Cu) is used as the plasmonic material, and graphene is used to prevent Cu oxidation and enhance sensing performance. Numerical investigation of guiding properties and sensing performance is performed by using a finite-element method. The proposed sensor shows average wavelength interrogation sensitivity of 2000 nm/refractive index unit (RIU) over the analyte refractive indices ranging from 1.33 to 1.37, which leads to a sensor resolution of 5 × 10-5 RIU. Due to the simple structure and promising results, the proposed sensor could be a potential candidate for detecting biomolecules, organic chemicals, and other analytes.
KW - Optical fiber sensors
KW - Optical sensing and sensors
KW - Photonic crystal fiber
KW - Surface plasmon resonance
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U2 - 10.1109/JPHOT.2015.2510632
DO - 10.1109/JPHOT.2015.2510632
M3 - Article
AN - SCOPUS:85007522454
SN - 1943-0655
VL - 8
JO - IEEE Photonics Journal
JF - IEEE Photonics Journal
IS - 1
M1 - 7361738
ER -