Analysis of highly sensitive biosensor for glucose based on a one-dimensional photonic crystal nanocavity

Bouras, Mounir; Charik, Haouari; Saïd, Allal; Hocini, Abdesselam

doi:10.1117/1.oe.58.2.027102

Cited by 10 publications

(10 citation statements)

References 21 publications

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“…Thermotropic liquid crystals are used for most N-LC based applications. The electro-optic properties of liquid thermotropic crystals are temperature-dependent [33,34].…”

Section: Theory and Principlementioning

confidence: 99%

“…In the case of E7, the measured ordinary n o and extraordinary n e refractive indices show that n e still decreases as the temperature rises, while n o first decreases modestly and only increases after the temperature passes 50 • . The effective index is n e when the electric field is added to the N-LC [33]. For this purpose, the peculiar beam would be used in the method of thermal sensing.…”

Section: Theory and Principlementioning

confidence: 99%

“…At an operating wavelength of 1550 nm, the extraordinary n e refractive indices decreases from 1,710 to 1,580 by changing the temperature from 15.6 • C to 49.6 • C [33]. The n o ordinary refractive indices vary between increase and decrease as the temperature increases from 1.50 to 1.5180 [33,34]. The influence of the N-LC layer's angle ∅ on the propagation properties of the proposed design will first be studied.…”

Section: Theory and Principlementioning

confidence: 99%

“…PhC doped with N-LC material has recently acquired a great deal of research attention [19][20][21][22][23][24][25]. With crystal form orientation, the molecules of the N-LC have a degree of ordering [26].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

High-Sensitive Thermal Sensor Based on a 1d Photonic Crystal Microcavity With Nematic Liquid Crystal

Charik¹,

Bouras²,

Bennacer³

2021

PIER M

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In this study, 1D Photonic Crystal (PhC) with Nematic Liquid Crystal (N-LC) central microcavity is analyzed and discussed using Rigorous Coupled Wave Analysis (RCWA) method. A microcavity is inserted into the 1D PhC by the Air Defect, making it ideal for measuring the properties of an N-LC contained inside the microcavity. Here simulation is considered for NLC (E7) as a thermal sensor. The principle of photonic crystal thermal sensor operation is studied in the TE mode of the incident beam. We conduct a detailed study of the thermal sensor with differences in the width of central microcavity of N-LC. The sensitivity and quality factor are evaluated. Compared to other photonic crystal sensors mentioned previously, this thermal optical sensor has a much simpler structure and higher sensitivity.

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“…Thermotropic liquid crystals are used for most N-LC based applications. The electro-optic properties of liquid thermotropic crystals are temperature-dependent [33,34].…”

Section: Theory and Principlementioning

confidence: 99%

Section: Theory and Principlementioning

confidence: 99%

Section: Theory and Principlementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

High-Sensitive Thermal Sensor Based on a 1d Photonic Crystal Microcavity With Nematic Liquid Crystal

Charik¹,

Bouras²,

Bennacer³

2021

PIER M

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“…The majority of these components, however, are designed for multimode transmission or straight single-mode wave guiding. In the current study, a single mode transmission with a Y-junction component is required for a high-sensitivity MZI biosensor [15].…”

Section: Introductionmentioning

confidence: 99%

A New Design for Enhancing Highly Sensitive Interferometer Biosensor Using a Silicon Rib Waveguide

Khennouf¹,

Bouras²

2022

I2M

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In this paper, we have proposed a new design, to enhance and simulate a Highly Sensitive Mach-Zehnder Interferometer (MZI) Biochemical sensing platform using a Silicon Rib Waveguide. We considered two different MZI configurations: the first one with an S-bend & Y-junction and the second with an angular Y-junction. We determined the critical cut-off radius and the critical cut-off angle for the S-bend & Y-junction and the angular Y-junction configurations respectively. Based on the analyses of the evanescent field intensity, the mode polarization and cross section dimensions of the Silicon Rib waveguide are optimized using beam propagation method. The critical parameters of the design are calculated to ensure minimal optical losses and a new sensitivity value of 308 dB/RIU with a detection limit of 10-7, which shows the ability of the structure to produce biosensor.

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A Theoretical Approach for Detecting the Chikungunya Virus Based on 1D Photonic Crystals

Kathiresan

Ramanujam²,

Poovendran³

et al. 2023

Physica Status Solidi (a)

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The Current study aims at using defective 1D photonic crystals to detect the Chikungunya virus in various healthy and diseased blood samples composed of plasma, platelets, red blood cells, and uric acid. The proposed PC structure has 14 periods and consists of repeating SiC and SiO2 layers with a central cavity layer. When blood samples are injected into the cavity layer, the transmittance spectrum is examined theoretically by using a transfer matrix approach to determine how the wavelength of the defect mode changes. The cavity layer is 540 nm and 648 nm thick, and the work has been carried out at different angles of incidence. The performance of the sensor is quantified by computing the sensitivity, figure of merit, quality factor, and limit of detection values of the sensor for various blood samples. The maximum sensitivity is 1205.5 nm/RIU and detection limits of the order is 10‐6 in this prosped work. A lower value of SR of 0.01218 is also achieved. Such a high‐performance sensor is suitable for biosensing applications with better sensing capabilities.This article is protected by copyright. All rights reserved.

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Analysis of highly sensitive biosensor for glucose based on a one-dimensional photonic crystal nanocavity

Cited by 10 publications

References 21 publications

High-Sensitive Thermal Sensor Based on a 1d Photonic Crystal Microcavity With Nematic Liquid Crystal

High-Sensitive Thermal Sensor Based on a 1d Photonic Crystal Microcavity With Nematic Liquid Crystal

A New Design for Enhancing Highly Sensitive Interferometer Biosensor Using a Silicon Rib Waveguide

A Theoretical Approach for Detecting the Chikungunya Virus Based on 1D Photonic Crystals

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