Symmetrical dual D-shape photonic crystal fibers for surface plasmon resonance sensing

Liu, Chao; Su, Weiquan; Liu, Qiang; Lu, Xili; Wang, Famei; Sun, Tao; Chu, Paul K.

doi:10.1364/oe.26.009039

Cited by 226 publications

(83 citation statements)

References 36 publications

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“…It is observed that the resonance peak shift increases with the increase of analyte RI resulting in high sensitivity for larger RI. Note that the proposed sensor shows similar loss characteristics to previously reported [32] highly sensitive sensors. Moreover, from Fig.…”

Section: Investigation Of Sensor Performance By Optimizing Different supporting

confidence: 77%

“…According to WI method the wavelength sensitivity can be calculated according to the following Eq. [32],…”

Section: Design and Theoretical Modelling Of The Proposed Pcf-spr Sensormentioning

confidence: 99%

“…Note that, to evaluate the overall performance of a sensor, the FOM is defined as the ratio of sensitivity to full width at half minima (FWHM) [32,58,59]. In general, to realize a high performance sensor the FOM should be as high as possible that can be obtained when the sensitivity increases and FWHM decreases.…”

Section: Investigation Of Sensor Performance By Optimizing Different mentioning

confidence: 99%

“…Note that PCFs with a D-shaped structure provided a solution and a number of D-shaped PCF-SPR sensors have been reported [6,[25][26][27][29][30][31][32]. Among the reported D-shaped structures, Wang et al in 2016 reported a maximum wavelength sensitivity of 12450 nm/RIU within the RI range of 1.345-1.410 [27].…”

Section: Introductionmentioning

confidence: 99%

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Dual-polarized highly sensitive plasmonic sensor in the visible to near-IR spectrum

Islam¹,

Sultana²,

Rifat³

et al. 2018

Opt. Express

156

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We propose and numerically characterize the optical characteristics of a novel photonic crystal fiber (PCF) based surface plasmon resonance (SPR) sensor in the visible to near infrared (500-2000 nm) region for refractive index (RI) sensing. The finite element method (FEM) is used to design and study the influence of different geometric parameters on the sensing performance of the sensor. The chemically stable plasmonic material gold (Au) is used to produce excitation between the core and plasmonic mode. On a pure silica (SiO 2) substrate, a rectangular structured core is used to facilitate the coupling strength between the core and the surface plasmon polariton (SPP) mode and thus improves the sensing performance. By tuning the geometric parameters, simulation results show a maximum wavelength sensitivity of 58000 nm/RIU (Refractive Index Unit) for the x polarization and 62000 nm/RIU for the y polarization for analyte refractive indices ranging from 1.33 to 1.43. Moreover, we characterize the amplitude sensitivity of the sensor that shows a maximum sensitivity of 1415 RIU −1 and 1293 RIU −1 for the x and y polarizations, respectively. To our knowledge, this is the highest sensitivity for an SPR in published literature, and facilitates future development of sensors for accurate and precise analyte measurement. The sensor also attains a maximum figure of merit (FOM) of 1140 and fine RI resolution of 1.6 × 10 −6. Owing to strong coupling strength, high sensitivity, high FOM and improved sensing resolution, the proposed sensor is suited for real-time, inexpensive and accurate detection of biomedical and biological analytes, biomolecules, and organic chemicals.

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Section: Investigation Of Sensor Performance By Optimizing Different supporting

confidence: 77%

“…According to WI method the wavelength sensitivity can be calculated according to the following Eq. [32],…”

Section: Design and Theoretical Modelling Of The Proposed Pcf-spr Sensormentioning

confidence: 99%

Section: Investigation Of Sensor Performance By Optimizing Different mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Dual-polarized highly sensitive plasmonic sensor in the visible to near-IR spectrum

Islam¹,

Sultana²,

Rifat³

et al. 2018

Opt. Express

156

View full text Add to dashboard Cite

show abstract

“…In recent years, the design of PCF-SPR biosensors has attracted researcher's attention because of their applications in many areas, such as the analysis of biomolecular interactions (BIA) and precise detection of chemical and biological analytes [8]. For example, a PCF-SPR biosensor for the low refractive index (RI) detection was proposed by Liu et al [9] with low spectral sensitivity and amplitude sensitivity of 6000 nm/RIU and 600 RIU −1 , respectively.…”

Section: Introductionmentioning

confidence: 99%

Dual-Core Photonic Crystal Fiber Plasmonic Refractive Index Sensor: A Numerical Analysis

2018

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A numerical analysis on dual core photonic crystal fiber (DC-PCF) based surface plasmon resonance (SPR) refractive index sensor is presented. The guiding parameters and required sensing performances are examined with finite element method (FEM) based software under MATLAB environment. According to simulation, it is warranted that the proposed refractive index sensor offers the maximum amplitude sensitivity of 554.9 refractive index unit (RIU −1 ) and 636.5 RIU −1 with the maximum wavelength sensitivity of 5800 nm/RIU and 11 500 nm/RIU, and the sensor resolutions of 1.72 × 10 −5 RIU and 8.7 × 10 −6 RIU, at analyte refractive index (RI) of 1.40 for x-and y-polarized modes, respectively. As the sensing performance in different wavelength ranges is quite high, the proposed sensor can be used in simultaneous detection for different wavelength ranges. Therefore, the proposed device is of a suitable platform for detecting biological, chemical, biochemical, and organic chemical analytes.

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Optical Fiber Optofluidic Bio‐Chemical Sensors: A Review

Zhang

Zhou

et al. 2021

Laser & Photonics Reviews

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Optofluidic, as an emerging technology that combines photons and microfluidics, has become a powerful, intelligent, and universal sensing platform in the field of bio-chemical sensing. Optical fiber optofluidic (OFOF), as a branch of optofluidic technology, has stimulated a host of remarkable achievements in the field of bio-chemical sensing due to its superiority of compact structure, immunity to electromagnetic interference, low sample consumption, high sensitivity, and real-time dynamic response. In this paper, an overview of OFOF bio-chemical sensors is presented. The OFOF system architectures are introduced and some advanced functional materials and coating technologies that can be utilized in the OFOF sensing platform to achieve high-performance biochemical sensing are summarized. Research progress and current status of OFOF bio-chemical sensors based on various sensing mechanisms are summarized and analyzed, with emphases on their sensing principles, sensing structures, sensing applications, advantages, and disadvantages. Lastly, the existing challenges and future development trends of OFOF biochemical sensors are briefly discussed.

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Symmetrical dual D-shape photonic crystal fibers for surface plasmon resonance sensing

Cited by 226 publications

References 36 publications

Dual-polarized highly sensitive plasmonic sensor in the visible to near-IR spectrum

Dual-polarized highly sensitive plasmonic sensor in the visible to near-IR spectrum

Dual-Core Photonic Crystal Fiber Plasmonic Refractive Index Sensor: A Numerical Analysis

Optical Fiber Optofluidic Bio‐Chemical Sensors: A Review

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