Highly sensitive selectively coated photonic crystal fiber-based plasmonic sensor

Rifat, Ahmmed A.; Haider, Firoz; Ahmed, Rajib; Mahdiraji, Ghafour Amouzad; Adikan, Faisal Rafiq Mahamd; Miroshnichenko, Andrey E.

doi:10.1364/ol.43.000891

Cited by 228 publications

(77 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These values are higher than recently reported values for similar sensors [25], [57]- [63]. Fiber optics based sensors exhibit higher sensitivity than our proposal, but present a lower FOM [64], [65]. Experimentally [66], scientists achieve a FOM of 730 RIU −1 that leads to detection of ultralow concentrations of 10 −10 M. In figure 7.b the sensitivity of our design drops from 1000 to 980.5 nm/RIU at n a = 2, and the FOM has a minimum value of 667 RIU −1 at n a = 1.725.…”

Section: Plasmonic-fano Resonance Sensorcontrasting

confidence: 80%

Performance Improvement of Refractometric Sensors Through Hybrid Plasmonic–Fano Resonances

Elshorbagy

Cuadrado

González

et al. 2019

J. Lightwave Technol.

View full text Add to dashboard Cite

In this paper, we present a plasmonic refractometric sensor that works under normal incidence; allowing its integration on a fiber tip. The sensor's material and geometry exploit the large scattering cross-section given by high-contrast of the index of refraction subwavelength dielectric gratings. Our design generates a hybrid plasmonic-Fano resonance due to the interference between the surface plasmon resonance and the grating response. We optimize the sensor with a merit function that combines the quality parameter of the resonance and the field enhancement at the interaction volume where the plasmon propagates. Our device shows a high sensitivity (1000 nm/RIU) and a high Figure of Merit (775 RIU −1 ). Degradation in performance is negligible through a wide dynamic range up to 0.7 RIU. These quantitative parameters overperform compared to similar plasmonic sensors.

show abstract

Section: Plasmonic-fano Resonance Sensorcontrasting

confidence: 80%

Performance Improvement of Refractometric Sensors Through Hybrid Plasmonic–Fano Resonances

Elshorbagy

Cuadrado

González

et al. 2019

J. Lightwave Technol.

View full text Add to dashboard Cite

show abstract

“…After the preparation of fiber performance, silica rods and capillaries are stacked together called stacked preform and drawn down by using a standard fiber drawing tower. Guiding cores are created by introducing deliberate defects in the lattice, for example by replacing a capillary with a solid rod, or leaving out several capillaries altogether [22,23]. All the thinner wall capillary, thicker wall capillary, and solid rods are stacked together called stacked preform as shown in Fig.…”

Section: Methodsmentioning

confidence: 99%

“…Wavelength sensitivity is measured for the change of the resonance wavelength per unit change in analyte RI. The resonance wavelength can be observed from the confinement loss of the proposed PCF sensor which could be calculated as [22] 4 0 e f f 8.686…”

Section: Wavelength Sensitivitymentioning

confidence: 99%

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

2018

View full text Add to dashboard Cite

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.

show abstract

“…The sensing is called internal when the analyte selectively fills the air holes, whereas when the analyte is placed at the surface of a PCF the sensing mechanism is called external sensing. In recent years, several sensors using an internal sensing mechanism have been reported in the literature [17][18][19][20][21][22][23][24]. Among them, the most recent work reported by Rifat et al [24] proposed a gold coated sensor and obtained a maximum wavelength and amplitude sensitivity of 11000 nm/RIU and 1420 RIU −1 respectively.…”

Section: Introductionmentioning

confidence: 99%

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

Islam¹,

Sultana²,

Rifat³

et al. 2018

Opt. Express

Self Cite

167

View full text Add to dashboard Cite

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.

show abstract

Highly sensitive selectively coated photonic crystal fiber-based plasmonic sensor

Cited by 228 publications

References 15 publications

Performance Improvement of Refractometric Sensors Through Hybrid Plasmonic–Fano Resonances

Performance Improvement of Refractometric Sensors Through Hybrid Plasmonic–Fano Resonances

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

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

Contact Info

Product

Resources

About