Multi-channel SPR biosensor based on PCF for multi-analyte sensing applications

Otupiri, Robert; Akowuah, Emmanuel Kofi; Haxha, Shyqyri

doi:10.1364/oe.23.015716

Cited by 163 publications

(47 citation statements)

References 29 publications

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“…It is clear that the y-polarized fundamental core mode and the SPP mode occurs high coupling at the wavelength of 602 nm. Since some energy of the fiber waveguide mode is transfer into the energy of the SPR mode, making the loss spectra of the fiber core mod appears a loss peak at the resonance wavelength [26,27]. The RI of the analyte has a significant influence on coupling between the y-polarized core mode and the SPP mode.…”

Section: Theoretical Analysismentioning

confidence: 99%

“…To our best knowledge, the theoretical value of the wavelength sensitivity (21700 nm/RIU) is highest sensitivity reported in D-shaped fiber SPR senor 25,26]. Compared to these design strategies of by the introduction of a small hollow core into MOF [1,11], optimizing air holes arrayed in MOF cladding [4][5][6][7][8][9][10], and sensitization processing at the polished surface [27], making PCF with lower RI material is a more effective method for improving sensitivity in D-shaped fiber SPR sensor.…”

Section: Theoretical Analysismentioning

confidence: 99%

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Surface plasmon resonance biosensor based on gold-coated side-polished hexagonal structure photonic crystal fiber

et al. 2017

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The refractive index sensing characteristics of the side-polished photonic crystal fiber (PCF) surface plasmon resonance (SPR) sensor are detailed investigated in this paper. We used the finite element method (FEM) to study the influences of the side-polished depth, air hole size, lattice constant, and the refractive index (RI) of the PCF material on sensing performance. The simulation results show that the side-polished depth, air hole size, lattice pitch have significant influence on the coupling strength between core mode and surface plasmon polaritons (SPPs), but have little influence on sensitivity; the coupling strength and sensitivity will significant increase with the decrease of RI of the PCF material. The sensitivity of the D-shaped PCF sensor is obtained to be as high as 21700 nm/RIU in the refractive index environment of 1.33-1.34, when the RI of the PCF material is controlled at 1.36. It revealed a new method of making ultra-high sensitivity SPR fiber sensor. Then we experimental demonstrated a SPR refractive sensor based on the side-polished single mode PCF and investigated the sensing performance. The experimental results of the plasmon resonance wavelength sensitivity agree well with the theoretical results. The presented gold-coated D-shaped PCF SPR sensor could be used as a simple, cost-effective, high sensitivity device in bio-chemical detection.

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Section: Theoretical Analysismentioning

confidence: 99%

Section: Theoretical Analysismentioning

confidence: 99%

Surface plasmon resonance biosensor based on gold-coated side-polished hexagonal structure photonic crystal fiber

et al. 2017

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“…In comparison to bi-functional biosensors, Zhang et al have reported only sensitivity of 1535 nm/RIU for Channel 1and 1550 nm/RIU for Channel 2 and 3 [24]. Moreover, Otupiri et al [25] have introduced a maximum sensitivity of 4600 nm/RIU and 2300 nm/RIU according to HEx 11 and HEy 11 modes, respectively. Furthermore, the reported biosensor has more sensitivity than 4240 nm/RIU reported in [12], [26].…”

Section: Numerical Resultsmentioning

confidence: 99%

Self-Calibration Highly Sensitive Photonic Crystal Fiber Biosensor

Hameed

Alrayk

2016

IEEE Photonics J.

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A novel design of a highly sensitive self-calibration biosensor based on a surface plasmon photonic crystal fiber is presented and analyzed using a full-vectorial finiteelement method. In this paper, the sensor geometrical parameters are optimized to achieve high sensitivity for the two polarized modes. The numerical results reveal that the resonant peaks corresponding to the two polarized beams are highly sensitive to the variation of the analyte refractive index. Therefore, high refractive index sensitivity of about 6700 nm/refractive index unit (RIU) and 10000 nm/RIU with the corresponding resolution of 1:49 Â 10 À5 and 1:0 Â 10 À5 RIU can be obtained according to the quasitransverse magnetic (TM) and quasi-transverse electric (TE) modes, respectively. Additionally, the reported self-calibration biosensor has high linearity and high accuracy. Furthermore, the suggested biosensor has great potential for biological and biochemical analytes detection.

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“…The dependence of the SPW on the changes of analyte RI is the underlying principle used in FOPS detection [47]. There are three main critical parameters for evaluating FOPS performance.…”

Section: Fops Performance Evaluationmentioning

confidence: 99%

Recent Advances in Plasmonic Sensor-Based Fiber Optic Probes for Biological Applications

et al. 2019

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The survey focuses on the most significant contributions in the field of fiber optic plasmonic sensors (FOPS) in recent years. FOPSs are plasmonic sensor-based fiber optic probes that use an optical field to measure the biological agents. Owing to their high sensitivity, high resolution, and low cost, FOPS turn out to be potential alternatives to conventional biological fiber optic sensors. FOPS use optical transduction mechanisms to enhance sensitivity and resolution. The optical transduction mechanisms of FOPS with different geometrical structures and the photonic properties of the geometries are discussed in detail. The studies of optical properties with a combination of suitable materials for testing the biosamples allow for diagnosing diseases in the medical field.

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Multi-channel SPR biosensor based on PCF for multi-analyte sensing applications

Cited by 163 publications

References 29 publications

Surface plasmon resonance biosensor based on gold-coated side-polished hexagonal structure photonic crystal fiber

Surface plasmon resonance biosensor based on gold-coated side-polished hexagonal structure photonic crystal fiber

Self-Calibration Highly Sensitive Photonic Crystal Fiber Biosensor

Recent Advances in Plasmonic Sensor-Based Fiber Optic Probes for Biological Applications

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