Graphene-based 1D defective photonic crystal biosensor for real-time detection of cancer cells

Panda, Abinash; Pukhrambam, Puspa Devi; Wu, Feng; Belhadj, Walid

doi:10.1140/epjp/s13360-021-01796-z

Cited by 72 publications

(22 citation statements)

References 54 publications

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“…The PBG is highly sensitive to external conditions, including temperature [10], mechanical stress [11], magnetic field [12], electric field [13], pressure [14], and self-organization of multilayered stacks [15]. Therefore, PCs are considered significant devices for optical sensor applications, such as chemical sensors [16], pressure sensors [17], and biosensors [18]. Many researchers have employed the index of refraction as a parameter to develop optical biosensor devices using PCs, especially as urea concentration sensor [19] a blood glucose sensor [20], and a blood sensor [21].…”

Section: Introductionmentioning

confidence: 99%

Design of a novel optical sensor for the detection of waterborne bacteria based on a photonic crystal with an ultra-high sensitivity

et al. 2022

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Today, detecting processes of waterborne bacteria in drinking water is a global challenge because these bacteria can lead to dangerous diseases to the human body. In this paper, we have developed a new sensor for the detection of waterborne bacteria based on a one-dimensional (1D) defective binary photonic crystal. The defect layer is taken as a water sample located in the middle of the photonic crystal structure. A resonant peak is then created within the photonic bandgap. The sensing mechanism of the proposed detector is based on the refractive index difference between pure water and waterborne bacteria samples. This index change leads to a shift in the resonant peak position in the transmission spectrum. The effects of many parameters, such as incident angle, defect layer thickness, thicknesses of periodic layers and the number of periods on the sensitivity are investigated. At the optimum conditions, the proposed sensor exhibits a sensitivity of 3639.53 nm/RIU which is ultra-high compared with recently published biosensor papers. The proposed design could distinguish between the different types of waterborne bacteria although the minute difference between their refractive indices. In addition to that, it has a simple design so that it can be easily fabricated.

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Section: Introductionmentioning

confidence: 99%

Design of a novel optical sensor for the detection of waterborne bacteria based on a photonic crystal with an ultra-high sensitivity

et al. 2022

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“…1 summarizes the advantages of the suggested device compared to other recent works in terms of sensitivity, FoM, and Q-factor. The sensitivity, FoM, and Q-factor of our sensor are better than other studies in references 43 – 45 . The FoM in 46 is better than ours, but our study outperformed it in the other parameters.…”

Section: Resultsmentioning

confidence: 56%

Refractive index sensor with magnified resonant signal

Zaky

Alamri

Жакетов

et al. 2022

Sci Rep

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Herein, we theoretically suggest one-dimensional photonic crystal composed of polymer doped with quantum dots and porous silicon. The present simulated design is proposed as a refractive index biosensor structure based on parity-time symmetry. Under the parity-time conditions, the transmittance of the resonant peaks is magnified to be 57,843% for refractive index 1.350, 2725% for 1.390, 2117% for 1.392, 1502% for 1.395, 1011% for 1.399, and 847% for 1.401. By magnification, we can distinguish between different refractive indices. The present design can record an efficiency twice the published designs as clear in the comparison table. Results clear that the sensitivities are 635 nm/RIU and 1,000,000%/RIU. So, it can be used for a broader range of detection purposes.

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“…The matrix form of relations is utilized to obtain the field values on either side of each layer. The transfer matrix for jth layer is given as (Panda et al 2021):…”

Section: Materials and Simulation Methodsmentioning

confidence: 99%

Gas sensing applications using magnetized cold plasma multilayers

Zaky

Amer

Suthar³

et al. 2022

Opt Quant Electron

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In this paper, we theoretically propose a novel magnetic field-dependent sensor using omnidirectional magnetized cold plasma photonic crystal in one dimension for TE polarization. The structure consists of asymmetric two periodic arrays from magnetized cold plasma and sample cavity layer. Between the periodic arrays, a sample cavity is sandwiched between two quartz layers. The methodology of the proposed detector depends on the appearance of a sensitive defect mode. The results clear that the defect mode frequency depends significantly on the refractive index of the sample, and it is extremely sensitive to incident angle changes, applied magnetic field, the number density of electrons, and sample layer thickness. The optimized proposed sensor has high sensitivity of 15.14 GHz/RIU, quality-factor of 527.32, and figure of merit of 1066.20 RIU−1, where RIU means refractive index unit. So, the proposed sensor can aid in solving many challenges in chemical and environmental applications.

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Graphene-based 1D defective photonic crystal biosensor for real-time detection of cancer cells

Cited by 72 publications

References 54 publications

Design of a novel optical sensor for the detection of waterborne bacteria based on a photonic crystal with an ultra-high sensitivity

Design of a novel optical sensor for the detection of waterborne bacteria based on a photonic crystal with an ultra-high sensitivity

Refractive index sensor with magnified resonant signal

Gas sensing applications using magnetized cold plasma multilayers

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