Analytical modelization of a fiber optic-based surface plasmon resonance sensor

Haddouche, Issam; Cherbi, L.; Ferhat, Mohamed Lamine

doi:10.1016/j.optcom.2017.06.086

Cited by 17 publications

(6 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The evanescent field of WGM can penetrate the metal film and then excite the SPR if the following phase-matching condition is fulfilled [ 27 ]:

where λ represents the wavelength of the incident light, n c is the RI of the fiber cladding, ϕ is the incidence angle, ε m is the dielectric constant of the metal film and n s is the RI of the surrounding medium. The sensitivity of an SPR-based sensor is generally defined as [ 36 ]

where n g is the effective RI of the guided mode propagating in the optical fiber, Γ is the electron relaxation rate given by Γ = 1/ τ , τ is the electron relaxation time, ω p is the plasma frequency and c is the light velocity.…”

Section: Fabrication and Sensing Principlementioning

confidence: 99%

Fiber-Optic Vector-Magnetic-Field Sensor Based on Gold-Clad Bent Multimode Fiber and Magnetic Fluid Materials

Liu

Hao

et al. 2022

Materials

View full text Add to dashboard Cite

A kind of bent multimode fiber (MMF) vector magnetic sensor based on surface plasmon resonance (SPR) was proposed. By plating gold film on the curved part of the bent multimode fiber, the surface plasmon mode (SPM) was excited via a whispering gallery mode (WGM). Fabricating the structure only required bending the fiber and plating it with gold, which perfectly ensured the integrity of the fiber and made it more robust compared with other structures. The sensor used magnetic fluid (MF) as the magnetically sensitive material. Through monitoring the shift of the surface plasmon resonance dip, the as-fabricated sensor not only had a high magnetic field intensity sensitivity of 9749 pm/mT but could also measure the direction of a magnetic field with a high sensitivity of 546.5 pm/°. The additional advantages of the proposed sensor lay in its easy fabrication and good integrity, which make it attractive in the field of vector-magnetic-field sensing.

show abstract

“…The evanescent field of WGM can penetrate the metal film and then excite the SPR if the following phase-matching condition is fulfilled [ 27 ]:

Section: Fabrication and Sensing Principlementioning

confidence: 99%

Fiber-Optic Vector-Magnetic-Field Sensor Based on Gold-Clad Bent Multimode Fiber and Magnetic Fluid Materials

Liu

Hao

et al. 2022

Materials

View full text Add to dashboard Cite

show abstract

“…In the N-layered matrix method, to analyze the reflectance and transmittance properties, the following three methods are surveyed, namely, the field tracing method, the resultant wave method, and the transfer matrix method [59]. The characteristics of better sensitivity with enhanced detection accuracy and figure of merit are endowed by this transfer matrix method [22,60]. In recent years, the fabrication techniques provide several geometries for the metal components, as shown in Figure 7c, which are used for tailoring the modal dispersion of the plasmons and to increase their coupling with the fundamental mode [61].…”

Section: Conventional Optical Fiber Sensorsmentioning

confidence: 99%

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

et al. 2019

View full text Add to dashboard Cite

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.

show abstract

“…The optical signal carrying the resonant wavelength is reflected back to the MMF, and the SPR wavelength in the It is well known that the SPR spectrum depends on the surrounding refractive index, incident angle of light (which is a fixed value for this proposed sensor), and thickness and length of the Au film. By using the simulation model proposed in [22], Figure 2 shows the simulation results of SPR spectra along with the variations of the gold film length, gold film thickness, and refractive index around the gold film. It can be seen from Figure 2a that the length of the gold film has no influence on the wavelength position of the resonance valley, but has a large influence on the shape of the resonance spectrum.…”

Section: Preparation Of Optical Fiber Spr Sensing Probementioning

confidence: 99%

Reflective Fiber Surface Plasmon Resonance Sensor for High-Sensitive Mercury Ion Detection

2019

View full text Add to dashboard Cite

This paper proposes a reflective fiber mercury ion sensor based on the surface plasmon resonance (SPR) principle and chitosan (CS)/polyacrylic acid (PAA) multilayer sensitive film. By optimizing the coating parameters of the gold film, the refractive index (RI) sensitivity of the reflective SPR sensor is demonstrated to be 2110.33 nm/RIU. Then, a multi-layer CS/PAA film is fixed on the surface of the gold film as a mercury ion sensitive film to form a reflective SPR fiber mercury ion sensor. Experimental results demonstrate that the sensor can be used to detect different concentrations of mercury ions with a high sensitivity of 0.5586 nm/µM and good specificity and repeatability. Therefore, the reflective SPR fiber mercury ion sensor shows great promise for future applications of environmental monitoring and drinking water safety.

show abstract

Analytical modelization of a fiber optic-based surface plasmon resonance sensor

Cited by 17 publications

References 21 publications

Fiber-Optic Vector-Magnetic-Field Sensor Based on Gold-Clad Bent Multimode Fiber and Magnetic Fluid Materials

Fiber-Optic Vector-Magnetic-Field Sensor Based on Gold-Clad Bent Multimode Fiber and Magnetic Fluid Materials

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

Reflective Fiber Surface Plasmon Resonance Sensor for High-Sensitive Mercury Ion Detection

Contact Info

Product

Resources

About