Gas-sensing and label-free detection of biomaterials employing multiple rings structured plasmonic nanosensor

Rashid, Kazi Sharmeen; Hassan, Md. Farhad; Yaseer, Ahmad Azuad; Tathfif, Infiter; Sagor, Rakibul Hasan

doi:10.1016/j.sbsr.2021.100440

Cited by 34 publications

(7 citation statements)

References 30 publications

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“…For instance, in biosensors, SPPs can detect the presence of biomolecules, such as DNA hybridization or blood components. Thus, these properties of SPPs not only provide new tools for research but also give new possibilities for industrial and technological applications, especially in the field of precision measurement and high-sensitivity detection [9,10].…”

Section: Introductionmentioning

confidence: 99%

A Nanosensor Based on Optical Principles for Temperature Detection Using a Gear Ring Model

Li,

Yan,

Cui

et al. 2024

Photonics

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Based on the characteristics of plasmonic waveguides and resonators, we propose a refractive index (RI) sensor that couples a gear ring with a metal–insulator–metal (MIM) waveguide. Using the finite element method (FEM), we conduct extensive spectral analysis of the sensor’s properties in the near-infrared spectrum. Furthermore, we investigate the structural parameters affecting the refractive index sensing characteristics. This study reveals that the complexity of the ring cavity edge can significantly enhance the sensitivity of the nanosensor. Optimal structural performance parameters are selected when the number of gears is six, resulting in a sensitivity of 3102 nm/RIU and a Figure of Merit (FOM) of 57.4 for the sensing characteristics of the gear ring. It possesses the advantages of small size and high sensitivity. This nanoscale sensor design demonstrates high sensitivity in the field of industrial material temperature detection.

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Section: Introductionmentioning

confidence: 99%

A Nanosensor Based on Optical Principles for Temperature Detection Using a Gear Ring Model

Li,

Yan,

Cui

et al. 2024

Photonics

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“…For example, Rashid et al proposed a refractive index sensor based on the coupling of three circular rings, achieving a maximum sensitivity of 3573.3 nm/RIU with Figure of merit (FOM) of 21.9 [11]. Kazanskiy et al introduced a semi-circular resonator loaded with periodically decorated nano-dots, achieving an optimal sensitivity of 1084.21 nm/RIU [12].…”

Section: Introductionmentioning

confidence: 99%

Nano Application of Oil Concentration Detection Using Double-Tooth Ring Plasma Sensing

Li,

Yan,

Cui

et al. 2024

Applied Nano

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Based on the unique properties of optical Fano resonance and plasmonic-waveguide coupling systems, this paper explores a novel refractive index concentration sensor structure. The sensor structure is composed of a metal–insulator–metal (MIM) waveguide and two identically shaped and sized double-tooth ring couplers (DTR). The performance structure of the nanoscale refractive index sensor with DTR cavity was comprehensively assessed using the finite element method (FEM). Due to the impact of various geometric parameters on the sensing characteristics, including the rotation angles, the widths between the double-tooth rings, and the gaps between the cavity and the waveguide, we identified an optimal novel refractive index sensor structure that boasts the best performance indices. Finally, the DTR cavity sensor achieved a sensitivity of 4137 nm/RIU and Figure of merit (FOM) of 59.1. Given the high complexity and sensitivity of the overall structure, this nanoscale refractive index sensor can be applied to the detection of oil concentration in industrial oil–water mixtures, yielding highly precise results.

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“…Different optical sensors including surface plasmon resonance (SPR), localized surface plasmon resonance (LSPR), and the photonic crystal (PC) are sensing based on the change in the refractive index of the sensing targets 3 – 8 . Also, waveguide−coupled resonators containing different resonator shapes such as simple rings, ladder-shaped, Cog-shaped, and else are another type of optical sensor that works based on the change in the refractive index of the target and can be used for sensing 9 – 11 .…”

Section: Introductionmentioning

confidence: 99%

Highly sensitive asymmetric and symmetric cancer sensors with ultra-high-quality factor and resolution power

Sovizi

Aliannezhadi

2023

Sci Rep

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In the paper, we proposed two new highly sensitive and compact biosensors with ultra-high-quality factors based on the 1-D binary photonic crystal (silicon/air thin layer) with a defect layer. The proposed asymmetric and symmetric biosensors have just a few periods (two to five) on both sides of the defect layer and the normal cell group (INOK) and cancer cells group (YD-10B) are considered for the studies. The effects of different parameters including silicon layer thickness, air layer thickness, defect layer thickness, substrate position, number of periods, and light incident angle are considered in the biosensor operation and the biosensors are optimized based on the sensitivity. The results demonstrate that the sensitivity and defect mode wavelength of the sensors are independent of the substrate position. However, the quality factor and FOM of the sensors significantly depend on the substrate position and they are improved significantly in the symmetric sensor (~ 37% improvement in optimum condition). Also, the high sensitivities of the sensors are maintained over a wide range of silicon and air thicknesses, which is a valuable achievement in the manufacturing process. Furthermore, the sensitivity of the optimized biosensors with a defect layer thickness of 10 microns and only two periods reaches S ~ 2811 nm/RIU which is an excellent sensitivity for an optical biosensor.

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Gas-sensing and label-free detection of biomaterials employing multiple rings structured plasmonic nanosensor

Cited by 34 publications

References 30 publications

A Nanosensor Based on Optical Principles for Temperature Detection Using a Gear Ring Model

A Nanosensor Based on Optical Principles for Temperature Detection Using a Gear Ring Model

Nano Application of Oil Concentration Detection Using Double-Tooth Ring Plasma Sensing

Highly sensitive asymmetric and symmetric cancer sensors with ultra-high-quality factor and resolution power

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