High sensitive optofluidic sensor array based on ring-shaped holes photonic crystal H0-cavity

Arafa, Safia; Bouchemat, Mohamed; Bouchemat, Touraya; Benmerkhi, Ahlem

doi:10.1016/j.ijleo.2016.11.051

Cited by 6 publications

(2 citation statements)

References 33 publications

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“…As it can be seen from this figure, the shift occurs only with the functionalized biosensors while the others remain completely unchanged. It can also be noted that the spectral position of the resonating peak detected at the end of output waveguides shifts towards longer wavelengths (red-shift) as the RI of the biosensor functionalized area is increased by 1.330, 1.335, 1.340, 1.345, 1.350, 1.355, 1.360, 1.365, 1.370, 1.377, respectively, which is in good agreement with the previous works [21], [25]. Fig.…”

Section: Sensing Properties Analysis Of the Integrated Phc Biosensorssupporting

confidence: 91%

High sensitive photonic crystal multiplexed biosensor array using H0 sandwiched cavities

Arafa

Bouchemat

et al. 2017

EPJ Web Conf.

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Abstract. We theoretically investigate a high sensitive photonic crystal integrated biosensor array structure which is potentially used for label-free multiplexed sensing. The proposed device consists of an array of three sandwiched H0 cavities patterned above silicon on insulator (SOI) substrate; each cavity has been designed for different cavity spacing and different resonant wavelength. Results obtained by performing finite-difference time-domain (FDTD) simulations, indicate that the response of each detection unit shifts independently in terms of refractive index variations. The optimized design makes possible the combination of sensing as a function of location, as well as a function of time in the same platform. A refractive index sensitivity of 520nm/RIU and a quality factor over 10 4 are both achieved with an accompanied crosstalk of less than -26 dB. In addition, the device presents an improved detection limit (DL) of 1.24.10 -6 RIU and a wide measurement range. These features make the designed device a promising element for performing label-free multiplexed detection in monolithic substrate for medical diagnostics and environmental monitoring.

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Section: Sensing Properties Analysis Of the Integrated Phc Biosensorssupporting

confidence: 91%

High sensitive photonic crystal multiplexed biosensor array using H0 sandwiched cavities

Arafa

Bouchemat

et al. 2017

EPJ Web Conf.

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“…1(b)]. c) Ring-shaped: By removing some lattice points to form one or more ring-shaped defects and generating some localized optical modes that resonate in these rings [41][42][43][44]. [See Fig.…”

Section: Photonic Crystal Resonatorsmentioning

confidence: 99%

Design of a highly sensitive photonic crystal refractive index sensor incorporating ring-shaped GaAs cavity

Rahman-Zadeh¹,

Danaie²,

Kaatuzian³

2019

Opto-Electronics Review

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Two highly sensitive optical sensor topologies are proposed and simulated in this paper. The proposed structures are optimized to provide better performance characteristics such as sensitivity, detection limit, and quality factor. They are based on two-dimensional photonic crystals consisting of rectangular arrays of GaAs rods in SiO 2 substrates. Such lattices have bandgaps for transverse magnetic modes. Twodimensional finite difference time domain and plane wave expansion methods are used for the simulation and analysis of the refractive index sensors and particle swarm optimization method is used to optimize the structural parameters. The designed structures show a high sensitivity to refractive index variations. They are able to detect refractive indices from 1.33 to 1.5. An excellent figure of merit equal to 737 RIU −1 is observed for the proposed structure and a significant improvement is observed compared to the structures reported in the literature.

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Design of bio-alcohol sensor based on waveguide-coupled photonic crystal cavity

Houssein Jokar,

Naraghi,

Seifouri

et al. 2023

Results in Optics

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High sensitive optofluidic sensor array based on ring-shaped holes photonic crystal H0-cavity

Cited by 6 publications

References 33 publications

High sensitive photonic crystal multiplexed biosensor array using H0 sandwiched cavities

High sensitive photonic crystal multiplexed biosensor array using H0 sandwiched cavities

Design of a highly sensitive photonic crystal refractive index sensor incorporating ring-shaped GaAs cavity

Design of bio-alcohol sensor based on waveguide-coupled photonic crystal cavity

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