Biophotonic sensor for rapid detection of brain lesions using 1D photonic crystal

Nouman, Walaa M.; El-Ghany, S.E.-S. Abd; Sallam, Samira M.; Dawood, Abdel-Fattah B.; Aly, Arafa H.

doi:10.1007/s11082-020-02409-2

Cited by 68 publications

(41 citation statements)

References 26 publications

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“…The TMM will be used to systematically study the reflected S-polarized electromagnetic waves from the structure by using MATLAB tools. For the s-polarized wave, the transfer matrix (G) of the structure is: = ( 11 12 21 22…”

Section: Methodsmentioning

confidence: 99%

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Highly Sensitive Salinity and Temperature Sensor Using Tamm Resonance

Zaky

Aly

2021

Plasmonics

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In this paper, a Tamm plasmons resonance-based sensor is theoretically studied to calculate the salinity of seawater as well as a temperature sensor based on photonic crystals. The transfer matrix method (TMM) is used to systematically study and analyze the reflected s-polarized electromagnetic waves from the sensing structure. The proposed structure composes of prism/Au/water/(Si/SiO 2 ) /Si. The sensitivity, figure-of-merit, quality factor, and detection limit of the sensors are improved by optimizing the thickness of the seawater layer, incident angle, salinity concentration, and temperature. The proposed salinity sensor records a very high sensitivity of 8.5x10 4 nm/RIU and quality factor of 3x10 3 , and a very low detection limit of 10 −7 nm. Besides, the suggested temperature sensor achieves high sensitivity (from 2.8 nm/˚C to 10.8 nm/˚C), high-quality factor of 3.5x10 3 , and a very low detection limit of 3x10 −7 nm.These results indicate that the proposed sensor is a strong candidate for salinity and temperature measurements.

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Section: Methodsmentioning

confidence: 99%

“…Under a suitable condition, constructive interference between the reflected waves occurs, and the resultant reflected wave destructively interferes with the incident wave. Due to this destructive interference, a forbidden bandgap appears (PBG) [19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Highly Sensitive Salinity and Temperature Sensor Using Tamm Resonance

Zaky

Aly

2021

Plasmonics

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“…Photonic crystals (PCs) recently become one of the amazing favorite methods used in integrated optical circuits 1,2 , and many authors employing PCs in many valuable applications [3][4][5][6][7][8][9][10] . Photonic crystals consist of a multilayer of dielectric materials with low and high refractive indices that control the propagation of light.…”

Section: Introductionmentioning

confidence: 99%

Novel Biosensor Detection of Tuberculosis Based on Photonic Band Gap Materials

et al. 2021

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Tuberculosis is one of the most widespread infectious and deadliest diseases in the world. The death percentage is larger than that in the case of the current Coronavirus. Bio-photonic sensors represent a promising option for developing reliable, simple, and affordable tools for the effective detection of tuberculosis. In this paper, a novel design of an optical biosensor will be used as a tuberculosis detector based on a resonance cavity with high sensitivity in one-dimensional photonic crystals demonstrated theoretically. The results show that the increase of the defect layer thickness shifts the defect mode to a longer wavelength region. Besides, it is shifted to a shorter wavelength region via the increase of the incidence angle. The change in thickness of the defect layer and incident angle of light cause an optimization for our suggested structure and the sensitivity reaches 1390 nm/RIU. Our structure is very simple for industrial design.

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“…He presented the first explanation about the photonic crystal. Then, this field attracted visual attention in different applications such as chemical sensors [5,6], biosensors [7][8][9], filters [10,11], optical lenses [12], solar cells [13], and other applications [14][15][16][17][18][19][20][21]. Recently, the main challenge is how to use Nanomaterials with a very small size to create smart structures that can be used as complex and sophisticated devices [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Remote Temperature Sensor Based on Tamm Resonance

Zaky

Ahmed

Aly

2021

Silicon

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A highly-sensitive remote temperature sensor based on Tamm resonance is proposed using a one-dimensional photonic crystal. The proposed structure is prism/Ag/Toluene/SiO 2 /(PSi 1 /PSi 2) N /Si. The transfer matrix method is used to discuss the interaction between the structure and the S-polarization of the incident radiation waves. We optimized the structure by studying the effect of the incident angle, the thickness of the first and second layers of the photonic crystal unit cell, the porosity of them, and the thickness of the toluene layer. High sensitivity, high signal-to-noise ratio, and very low resolution are achieved due to the coupling between the porous silicon photonic crystal properties and Tamm resonance that makes it very distinguished compared to previous works.

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Biophotonic sensor for rapid detection of brain lesions using 1D photonic crystal

Cited by 68 publications

References 26 publications

Highly Sensitive Salinity and Temperature Sensor Using Tamm Resonance

Highly Sensitive Salinity and Temperature Sensor Using Tamm Resonance

Novel Biosensor Detection of Tuberculosis Based on Photonic Band Gap Materials

Remote Temperature Sensor Based on Tamm Resonance

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