Analyte-filled core self-calibration microstructured optical fiber based plasmonic sensor for detecting high refractive index aqueous analyte

Qin, Wei; Li, Shuguang; Yao, Yuhong; Xin, Xujun; Xue, Junjun

doi:10.1016/j.optlaseng.2014.01.003

Cited by 100 publications

(41 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A maximum sensitivity value of 4600nm/RIU, in multi analyte detection mode, is recorded by our proposed sensor which is better in comparison to a maximum of 4240nm/RIU reported in [3,14], Qin et al, Dash et al Furthermore, in self-referencing operational mode, a maximum sensitivity value of 4100nm/RIU is demonstrated which is comparable to maximum of 4240nm/RIU reported in [3,14], Qin et al, Dash et al …”

supporting

confidence: 50%

“…Our results indicate that our proposed sensor can either be operated in multi analyte detection mode or be used to eliminate effects of environmental noises on sensor results (self-referencing mode). With regards to sensitivity, our proposed SPR biosensor has sensitivities values comparable and even better than those in [3,14], Qin et al, Dash et al. A detailed description of the sensor design and numerical modeling is given in the next section followed with an interpretation on the influences of several structural variables on the sensor performance.…”

Section: Introductionmentioning

confidence: 96%

“…SPPs are oscillations of electron charge densities accompanied by a trans-magnetic (TM) polarized electric field propagating along the metal dielectric interface and exponentially decays into both metal and dielectric regions [2]. The propagation characteristics of the surface plasmon wave is highly sensitive to refractive index variations of the dielectric adjacent to the metal, and as a result, binding of target molecules to the metal surface enables monitoring of background (bulk) and surface (target analyte layer) refractive index changes of the analyte [1,3]. The SPR is highly promising in applications such as optical filtering and sensing [4,5].…”

Section: Introductionmentioning

confidence: 99%

“…The SPR is highly promising in applications such as optical filtering and sensing [4,5]. Moreover, accurate detection of molecular (both biological and chemical) interaction and analysis is required in many multiple disciplines such as medical diagnostics, health, environmental protection and bio-chemical technology [3]. Classical SPR based bio-chemical sensors were focused primarily on using a single channel for sensing purposes and did not take in to account noise (error) causing scenarios such as non-specific analyte binding events, temperature variations and instrumental instability that occur in reality [6].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

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

Otupiri¹,

Akowuah²,

Haxha³

2015

Opt. Express

165

View full text Add to dashboard Cite

This paper presents a theoretical investigation of a novel holey fiber (Photonic Crystal Fiber (PCF)) multi-channel biosensor based on surface plasmon resonance (SPR). The large gold coated micro fluidic channels and elliptical air hole design of our proposed biosensor aided by a high refractive index over layer in two channels enables operation in two modes; multi analyte sensing and self-referencing mode. Loss spectra, dispersion and detection capability of our proposed biosensor for the two fundamental modes (

show abstract

supporting

confidence: 50%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

Otupiri¹,

Akowuah²,

Haxha³

2015

Opt. Express

165

View full text Add to dashboard Cite

show abstract

“…Additionally, the value of d was kept as 0.4Λ. The reason for choosing comparatively larger air holes is to reduce the light confinement in the metal-dielectric interface [8]. In the entire simulation, the design parameters (Λ = 2 µm, d c = d 1 = 0.2Λ, d = 0.4Λ, t g = 40 nm) are kept constant in order to obtain the best sensing performance.…”

Section: Simulation Results and Performance Analysismentioning

confidence: 99%

A Highly Sensitive Gold-Coated Photonic Crystal Fiber Biosensor Based on Surface Plasmon Resonance

et al. 2017

View full text Add to dashboard Cite

Abstract:In this paper, we numerically demonstrate a two-layer circular lattice photonic crystal fiber (PCF) biosensor based on the principle of surface plasmon resonance (SPR). The finite element method (FEM) with circular perfectly matched layer (PML) boundary condition is applied to evaluate the performance of the proposed sensor. A thin gold layer is deposited outside the PCF structure, which acts as the plasmonic material for this design. The sensing layer (analyte) is implemented in the outermost layer, which permits easy and more practical fabrication process compared to analyte is put inside the air holes. It is demonstrated that, at gold layer thickness of 40 nm, the proposed sensor shows maximum sensitivity of 2200 nm/RIU using the wavelength interrogation method in the sensing range between 1.33-1.36. Besides, using an amplitude interrogation method, a maximum sensitivity of 266 RIU −1 and a maximum sensor resolution of 3.75 × 10 −5 RIU are obtained. We also discuss how phase matching points are varied with different fiber parameters. Owing to high sensitivity and simple design, the proposed sensor may find important applications in biochemical and biological analyte detection.

show abstract

Detection of Serratia marcescens and Mierococcus lysodeikticus Bacterial Cells Using Cerium Oxide/Transition Metal Dichalcogenides Heterostructure‐Based Surface Plasmon Resonance Sensor

Vasimalla,

Singh,

Balaji

et al. 2024

Advanced Photonics Research

View full text Add to dashboard Cite

This article explores a novel surface plasmon resonance sensor for detecting the Serratia marcescens and Mierococcus lysodeikticus bacteria cells employing the cerium oxide (CeO2) and transition metal dichalcogenides heterostructure. The proposed sensor is designed based on the Kretschmann configuration, where silver (Ag) is deposited over a prism's surface to excite the surface plasmons. The transfer matrix method and angular interrogation technique are exploited for analyzing the sensor's performance at a wavelength of 633 nm. Firstly, the optimization of the prism and metal film is analyzed by selecting the minimum reflectance, better sensitivity, and quality factor. Secondly, the influence of the proposed structure in the sensor is executed by the performances of different structures, which are made with defined layers. Thirdly, different sensing parameters are analyzed for the considered bacterial cells, resulting in the maximum attained parameters being a sensitivity of 369.40° RIU−1, QF of 151.35 RIU−1, and detection accuracy of 7.57. Finally, the comparative study also shows the noteworthy enhancement using the proposed sensor compared with existing work. Therefore, the proposed sensor can be used as a carrier for detecting the bacterial cells and establishing a new platform for biomolecular and biomedical applications.

show abstract

Analyte-filled core self-calibration microstructured optical fiber based plasmonic sensor for detecting high refractive index aqueous analyte

Cited by 100 publications

References 25 publications

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

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

A Highly Sensitive Gold-Coated Photonic Crystal Fiber Biosensor Based on Surface Plasmon Resonance

Detection of Serratia marcescens and Mierococcus lysodeikticus Bacterial Cells Using Cerium Oxide/Transition Metal Dichalcogenides Heterostructure‐Based Surface Plasmon Resonance Sensor

Contact Info

Product

Resources

About