Sensitivity enhancement of a surface plasmon resonance based fiber optic sensor using ZnO thin film: a theoretical study

Shukla, Sarika; Sharma, Navneet K.; Sajal, Vivek

doi:10.1016/j.snb.2014.09.083

Cited by 124 publications

(56 citation statements)

References 30 publications

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“…The optimization of the sensor sensitivity within varying of the Au and ZnO thicknesses was performed. The achieved results could be appied to Au/ZnO SPR based biosensors [73].…”

Section: Spr Based Biosensorsmentioning

confidence: 91%

“…Mostly nanorods (NRs) [36,38,40,43,45,47,48,53,56,74,82,86] and nanowires (NWs) [29,33,42,46,49,75,77,94] were used as a biosensor platform. Nanoparticles (NPs) [35,37,50,83,84,97,98], quantum dots [34,44], other low-dimentional structures [30,32,39,52,70,71,76,79,80,81,85,89,93,95,99] and thin films [31,51,72,73] were also applied. [57], b) SEM images of ZnO nanowires grown on sapphire (0001) substrate 2 …”

Section: Application Of Zno Nanostructures In Biosensorsmentioning

confidence: 99%

“…Considering the interaction of biomolecules with nanostructures "on the solid surface", the crucial role belongs to the adsorption process [6,8,57,58,[70][71][72][73][74][75][76][77]. The latter depends on the number of factors such as surface properties of the film (roughness, porosity etc), its thickness, the amount and types of surface defects and general physico-chemical compatibility of biomolecules and ZnO thin film.…”

Section: Crucial Points For Biosensing 31 the Role Of Biomolecules mentioning

confidence: 99%

“…Various types of ZnO platforms that used as a biosensor basis have been developed [40,41,43,57,63,64,69,73,89,90,92,[94][95][96][97][98][99]. The growth-controlled synthesis of ZnO nanorods in the aqueous phase has been investigated by Balaguera-Gelves et al [40].…”

Section: Novel Trends In Zno Biosensor Platformsmentioning

confidence: 99%

See 3 more Smart Citations

Optical biosensors based on ZnO nanostructures: advantages and perspectives. A review

Tereshchenko

Bechelany

Viter

et al. 2016

Sensors and Actuators B: Chemical

274

206

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“…The optimization of the sensor sensitivity within varying of the Au and ZnO thicknesses was performed. The achieved results could be appied to Au/ZnO SPR based biosensors [73].…”

Section: Spr Based Biosensorsmentioning

confidence: 91%

Section: Application Of Zno Nanostructures In Biosensorsmentioning

confidence: 99%

Section: Crucial Points For Biosensing 31 the Role Of Biomolecules mentioning

confidence: 99%

Section: Novel Trends In Zno Biosensor Platformsmentioning

confidence: 99%

See 2 more Smart Citations

Optical biosensors based on ZnO nanostructures: advantages and perspectives. A review

Tereshchenko

Bechelany

Viter

et al. 2016

Sensors and Actuators B: Chemical

274

206

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“…Nearly four times angular sensitivity has been achieved by adding a 10 nm Si film on top of a conventional SPR sensor. Besides, Shukla et al [16] and Bao et al [17] demonstrated a top ZnO layer is effective in enhancing the sensitivity of a fiber-type and prismtype SPR sensor respectively. Benkabou et al [18] achieved the sensitivity enhancement by employing a dielectric multilayer structure in a SPR sensor.…”

Section: Introductionmentioning

confidence: 99%

Optimized Dielectric Film for Maximum Sensitivity of Nearly Guided‐Wave Surface Plasmon Resonance Sensor

Lin¹,

Chen

2017

Physica Status Solidi (a)

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In this paper, the dielectric film of the nearly guided-wave surface plasmon resonance (NGWSPR) sensor is optimized to achieve the maximum sensitivity. By optimizing the thickness of dielectric (Si, AlAs, TiO 2 , and Si 3 N 4 ) film in a NGWSPR sensor, the optimized sensitivity of the NGWSPR sensor can be obtained. The optimized sensitivity of the NGWSPR sensor with AlAs film is 5.43, 8.47, and 24.41% higher than that of the NGWSPR sensor with Si, TiO 2 , or Si 3 N 4 film respectively. In addition, by analyzing the electric field intensity of NGWSPR sensors, the origin of highest sensitivity achieved by the NGWSPR sensor with AlAs film is investigated. Furthermore, by comparing the optimized sensitivity of the NGWSPR sensor with different refractive index of dielectric film, the existence of optimal refractive index of dielectric film for the maximum sensitivity is confirmed. Besides, the effects of refractive index of prism on the optimal dielectric refractive index and the maximum sensitivity are also studied.

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Optical Sensing by Metamaterials and Metasurfaces: From Physics to Biomolecule Detection

Khan

Xie

et al. 2022

Advanced Optical Materials

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Optical biosensors are a versatile detection and analysis tool used in biological research, health care, pharmaceuticals, environmental monitoring, homeland security, and the battlefield. [1] They do not interfere with electromagnetic (EM) radiation, manifest distant sensing capability, and may enable multiplexed detection in a single device. Optical biosensing technologies are widely used in current biomedical and environmental monitoring applications because they provide a reliable and quick way to identify and discriminate specific objects from a wide range of samples. [2][3][4][5] More interestingly, Optical biosensors outperform standard analytical techniques by delivering highly-sensitive, selective, and cost-effective real-time and label-free detection of biological and chemical molecules. [6,7] High specificities, sensitivity, small size, and cost-effectiveness are among the benefits.Metasurfaces are planar or 2D forms of metamaterials made up of arrays of antennas with a subwavelength thickness. They have been rapidly developed in the recent years due to their ability to manipulate light-matter interaction in both linear and non-linear regimes at the nanoscale. Various metasurfaces display remarkable optical features, such as acute resonance, significant nearfield enhancement, and suitable capacity to support electric and magnetic modes, on account of the strong light-matter interaction and the low optical loss. Due to these important properties, they can be used in several advanced optoelectronic applications, like surface-enhanced spectroscopy, photocatalysis, and sensing. This review reports on the recent progress of metamaterials and metasurfaces in molecular optical sensors. The principles that govern plasmonic and dielectric metasurfaces along with their features are outlined, supported by numerous examples. Then, the factors that result in a high Q-factor are presented in order to show that metamaterials and metasurfaces can be used for label-free sensing in a variety of detection mechanisms, including surface-enhanced spectroscopy, refractometric sensing, and surface-enhanced thermal emission spectroscopy via infrared absorption and Raman scattering, as well as chiral sensing. Finally, the challenges for future development are outlined.

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Sensitivity enhancement of a surface plasmon resonance based fiber optic sensor using ZnO thin film: a theoretical study

Cited by 124 publications

References 30 publications

Optical biosensors based on ZnO nanostructures: advantages and perspectives. A review

Optical biosensors based on ZnO nanostructures: advantages and perspectives. A review

Optimized Dielectric Film for Maximum Sensitivity of Nearly Guided‐Wave Surface Plasmon Resonance Sensor

Optical Sensing by Metamaterials and Metasurfaces: From Physics to Biomolecule Detection

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