The investigation of an LSPR refractive index sensor based on periodic gold nanorings array

Wang, Shuai; Sun, Xin; Ding, Mingjie; Peng, Gang-Ding; Qi, Yongle; Wang, Yile; Ren, Jie

doi:10.1088/1361-6463/aaa06a

Cited by 51 publications

(24 citation statements)

References 22 publications

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“…3d, which is in agreement with the observed simulation in the present study. This result is higher than the observed value in previous studies for nanoplasmonic 13,21,22 in this visible spectral region and other types of plasmonic interferometer 30,31,39,41 .…”

Section: Resultscontrasting

confidence: 78%

Rectangular plasmonic interferometer for high sensitive glycerol sensor

Khajemiri

Lee

Hamidi

et al. 2019

Sci Rep

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A novel plasmonic interferometric sensor intended for application to biochemical sensing has been investigated experimentally and theoretically. The sensor was included a slit surrounded by rectangular grooves using a thick gold film. A three-dimensional finite difference time-domain commercial software package was applied to simulate the structure. The Focused ion beam milling has been used as a mean to fabricate series of rectangular plasmonic interferometer with varying slit-groove distance L. Oscillation behavior is shown by transmission spectra in a broadband wavelength range between 400 nm and 800 nm in the distance between slit and grooves. Red-shifted interference spectrum is the result of increasing refractive indices. The proposed structure is functional from visible to near-infrared wavelength range and yields a sensitivity of 4923 nm/RIU and a figure of merit as high as 214 at 729 nm wavelength. In conclusion, this study indicates the possibility of fabricating a low cost, compact, and real-time high-throughput plasmonic interferometer.

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Section: Resultscontrasting

confidence: 78%

Rectangular plasmonic interferometer for high sensitive glycerol sensor

Khajemiri

Lee

Hamidi

et al. 2019

Sci Rep

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“…Other shapes exist with more exotic geometries, they can be produced by a variety of sequential methods, such as EBL, laser holographic lithography technology, colloidal or NSL, and NIL have been explored [ 23 , 75 , 177 , 178 , 179 ].…”

Section: Nanostructuresmentioning

confidence: 99%

Advances in Plasmonic Sensing at the NIR—A Review

Santos

Almeida

Pastoriza‐Santos

et al. 2021

Sensors

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Surface plasmon resonance (SPR) and localized surface plasmon resonance (LSPR) are among the most common and powerful label-free refractive index-based biosensing techniques available nowadays. Focusing on LSPR sensors, their performance is highly dependent on the size, shape, and nature of the nanomaterial employed. Indeed, the tailoring of those parameters allows the development of LSPR sensors with a tunable wavelength range between the ultra-violet (UV) and near infra-red (NIR). Furthermore, dealing with LSPR along optical fiber technology, with their low attenuation coefficients at NIR, allow for the possibility to create ultra-sensitive and long-range sensing networks to be deployed in a variety of both biological and chemical sensors. This work provides a detailed review of the key science underpinning such systems as well as recent progress in the development of several LSPR-based biosensors in the NIR wavelengths, including an overview of the LSPR phenomena along recent developments in the field of nanomaterials and nanostructure development towards NIR sensing. The review ends with a consideration of key advances in terms of nanostructure characteristics for LSPR sensing and prospects for future research and advances in this field.

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“…The mechanism of the enhancement of plasmon resonance in a ring array is analytically studied by Wang et al [33]. They successfully studied the sensitivity of the device based on the dimension and periodicity of the nanorings.…”

Section: Applications In Biological and Chemical Sensingmentioning

confidence: 99%

Principles and Applications of Nanoplasmonics in Biological and Chemical Sensing: A Review

Sohi¹,

Kahrizi²

2020

Recent Advances in Nanophotonics - Fundamentals and Applications

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Biosensing requires a highly sensitive real-time detection of the biomolecules. These properties are granted by nanoplasmonic sensing techniques. SPR-based optical sensors have evolved as a sensitive and versatile biosensing tool. A growing number of SPR-based sensing applications in the solution of clinical problems are reported in the recent years. This refers to the point that these sensors provide label-free detection of the living cells and non-destructive analysis techniques. In this study, we will review the mechanism of the detection in SPR biosensing, followed by the methods used to develop sensors to detect gases and the chemical, biological, and molecular interaction. The device sensitivity improvement based on plasmonic effects is also addressed in this study, and accordingly, the size and material dependence of the resonance frequency are discussed. The reviewed articles are categorized into three groups, depending on the SPR excitation configuration. In the first group of the sensors, the sensitivity of LSPR-based sensors in prism coupler configurations is reviewed. The second group, SPR excitation by optical fiber, slightly improved the sensitivity of the detections. The unique capability of the third group, photonic crystal fiber SPR sensors, in providing greatly improved sensitivity, generated a vast field of researches and applications in biosensing devices.

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The investigation of an LSPR refractive index sensor based on periodic gold nanorings array

Cited by 51 publications

References 22 publications

Rectangular plasmonic interferometer for high sensitive glycerol sensor

Rectangular plasmonic interferometer for high sensitive glycerol sensor

Advances in Plasmonic Sensing at the NIR—A Review

Principles and Applications of Nanoplasmonics in Biological and Chemical Sensing: A Review

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