High Resolution and Stability Self-Reference Plasmonic Sensor With Metallic Grating on Multilayered Dielectric Cavity Substrate

Guo, Ling; Liu, Huan; Yang, Hongyan; Shi, Minfang; Ye, Fanfeng; Ma, Jun; Chen, Shouhong

doi:10.1109/jsen.2022.3202109

Cited by 10 publications

(4 citation statements)

References 39 publications

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“…This sensor offers a novel approach for liquid detection and displacement sensing. In comparison to several reported refractive index sensors [47][48][49][50], our proposed sensor demonstrates significant advantages in sensitivity and FOM.…”

Section: Introductionmentioning

confidence: 91%

“…Bao et al introduced a high-performance integrated optical sensor based on stacked resonant composite gratings (SRCG) and analyzed the transmission spectrum of SRCG using a theoretical model that combines the coupled mode theory with the natural mode information of the grating structure [29]. However, existing optical refractive index sensors employing one-dimensional grating structures have limitations in terms of FOM and polarization sensitivity [30][31][32][33][34][35].…”

Section: Introductionmentioning

confidence: 99%

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Polarization Insensitivity Research of the Three-layer Silicon-based Symmetric Cascade Optical Sensor

Wei,

Huang,

et al. 2024

Preprint

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This paper presents a symmetric all-dielectric two-dimensional grating with high transmittance and high figure of merit (FOM) based on cylindrical nanoarrays as a liquid sensing structure with small volume and high sensitivity. The device is optimized using the finite element method to calculate the transmissivity under TE/TM polarization. When the incident angle is 4 degrees, the transmissivity of the grating is nearly 1 with a full width at half maximum of 0.0158 nm and a sensitivity of 256.196 nm/RIU. The FOM is 16214.937. The sensor characteristics of the incident angle on the device are analyzed, and the normalized electric field distribution indicates that the change of the incident angle has a significant modulation ability for the resonance energy distribution. The proposed sensor is independent of polarization state, easy to control and integrate, and has broad application prospects in fields such as liquid solution detection, ocean surveys, and position sensing.

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Section: Introductionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Polarization Insensitivity Research of the Three-layer Silicon-based Symmetric Cascade Optical Sensor

Wei,

Huang,

et al. 2024

Preprint

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show abstract

“…Gratings can also be considered as particular cases of metasurfaces. In the field of plasmonic RI sensing, grating-coupled SPR structures have been widely concerned in recent years due to the trend of device miniaturization and integration [16][17][18][19][20][21][22][23][24][25]. Moreover, the grating allows SPR excitation under normal incidence, which is conducive to the light collection and noise reduction.…”

Section: Introductionmentioning

confidence: 99%

“…Guo et al proposed a metal grating plasmonic sensor that utilizes a multi-layer dielectric cavity substrate. The sensor achieved a sensitivity of 500 nm/RIU and an FOM of 238 RIU −1 in liquids with a RI ranging from 1.46 to 1.52 [18]. However, the above studies are limited to gas or liquid sensing with low sensitivity and small FOM.…”

Section: Introductionmentioning

confidence: 99%

Infrared plasmonic refractive index sensor utilizing 2D grating of nano-bowtie particles for both gas and liquid

Wang,

Rao,

Zhu

et al. 2024

J. Opt.

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We propose a plasmonic structure that can be used for refractive index (RI) sensing with different analytes in the same wavelength-domain. A two-dimensional (2D) grating composed of nano-bowtie particles is used as the optical momentum coupling structure. The double-period feature of the 2D grating makes the structure have two excitation approaches with different polarization directions of incident light. The physical mechanisms of the plasmonic structure are revealed in detail by theoretical analysis and finite-difference time-domain method. The simulation results show that the structure can achieve a gas sensing sensitivity of 1235 nm/RIU and a liquid sensing sensitivity of 950 nm/RIU in the same wavelength-domain from 1200 nm to 1400 nm. This structure can be widely used in the field of gas or liquid biochemistry due to its simple geometry and competitive sensing performance.

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Guided Mode Induced Surface Phase Mutation for Enhanced SPR Biosensor with Dual‐Parameters Interrogation

Liu,

Guo,

Tan

et al. 2023

Adv Materials Inter

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Ongoing research on the sensitivity and integration of refractive index‐based biosensors has resulted in significant advancements. Here, the study presents an enhanced surface plasmon resonance biosensor that integrates imaging technology and features dual‐parameter interrogation (intensity and phase) with guided mode coupling. By depositing a silica‐waveguide‐layer on a metal‐layer, two‐mode coupling is established to generate a high Q resonance and induce a phase mutation. The sensing performance experiment demonstrated a phase sensing sensitivity of 1.1 × 105 degree RIU−1, Q‐value of the resonant peak up to 314, and figure of merit of 300 RIU−1, superior to most standard plasmonic sensors. An in‐line phase‐polarization modulation scheme combined with imaging technology is proposed to extract the resonant phase carrying refractive index information. Additionally, a pair‐prism module is designed to optimize the sensing system configuration. Meanwhile, dual‐parameters interrogation including the intensity and phase are demonstrated, which offers potential for complementary and multi‐sensing fusion applications. The intensity interrogation also shows a considerable sensitivity of 7.2 × 104 a.u. RIU−1. Furthermore, it is combined with microfluidic chip to detect of alpha‐synuclein protein closely related to Parkinson's disease, and the limit of detection can reach 300 pg mL−1 level, which indicated a considerable potential for high‐throughput diagnosis application.

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High Resolution and Stability Self-Reference Plasmonic Sensor With Metallic Grating on Multilayered Dielectric Cavity Substrate

Cited by 10 publications

References 39 publications

Polarization Insensitivity Research of the Three-layer Silicon-based Symmetric Cascade Optical Sensor

Polarization Insensitivity Research of the Three-layer Silicon-based Symmetric Cascade Optical Sensor

Infrared plasmonic refractive index sensor utilizing 2D grating of nano-bowtie particles for both gas and liquid

Guided Mode Induced Surface Phase Mutation for Enhanced SPR Biosensor with Dual‐Parameters Interrogation

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