Photonic Crystal Chemical/Biochemical Sensors

Olyaee, Saeed; Mohsenirad, Hamideh; Bahabady, Ahmad Mohebzadeh

doi:10.5772/63288

Cited by 9 publications

(3 citation statements)

References 24 publications

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“…Therefore, the accelerometer based on the resonant wavelength shift approach requires a wider FSR that is achieved by the proposed AOS in this study. The accelerometer sensor sensitivity is defined by [83] S…”

Section: Numerical Results and Discussionmentioning

confidence: 99%

A Novel All-Optical Sensor Design Based on a Tunable Resonant Nanocavity in Photonic Crystal Microstructure Applicable in MEMS Accelerometers

et al. 2020

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In view of the large scientific and technical interest in the MEMS accelerometer sensor and the limitations of capacitive, resistive piezo, and piezoelectric methods, we focus on the measurement of the seismic mass displacement using a novel design of the all-optical sensor (AOS). The proposed AOS consists of two waveguides and a ring resonator in a two-dimensional rod-based photonic crystal (PhC) microstructure, and a holder which connects the central rod of a nanocavity to a proof mass. The photonic band structure of the AOS is calculated with the plane-wave expansion approach for TE and TM polarization modes, and the light wave propagation inside the sensor is analyzed by solving Maxwell’s equations using the finite-difference time-domain method. The results of our simulations demonstrate that the fundamental PhC has a free spectral range of about 730 nm covering the optical communication wavelength-bands. Simulations also show that the AOS has the resonant peak of 0.8 at 1.644µm, quality factor of 3288, full width at half maximum of 0.5nm, and figure of merit of 0.97. Furthermore, for the maximum 200nm nanocavity displacements in the x- or y-direction, the resonant wavelengths shift to 1.618µm and 1.547µm, respectively. We also calculate all characteristics of the nanocavity displacement in positive and negative directions of the x-axis and y-axis. The small area of 104.35 µm2 and short propagation time of the AOS make it an interesting sensor for various applications, especially in the vehicle navigation systems and aviation safety tools.

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Section: Numerical Results and Discussionmentioning

confidence: 99%

A Novel All-Optical Sensor Design Based on a Tunable Resonant Nanocavity in Photonic Crystal Microstructure Applicable in MEMS Accelerometers

et al. 2020

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“…Some of common defect types for PC lattices are listed here [36,37]: a) Hm-type: By removing m points to create a small space in the lattice. H0-cavity is created by just modifying the radius of some holes or rods without removing any point [38][39][40]. Figure 1 (a) shows this kind of cavity.…”

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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“…small size and shape as well as the strong confinement of light at the heart of the device which gives them a well-defined and precise detection platform, photonic crystals are the best answer to this field [39]. Furthermore, other sensors based on photonic crystals (PhCs) or based on circular rings based on PhC called (PhCRR) have been used for biodetection applications [40], temperature sensors [41], detection of cancer [42], chemical sensors [43], etc.…”

Section: Introductionmentioning

confidence: 99%

Study, simulation and detection of glucose concentrations through a biochip based on two-dimensional photonic crystals

Bella,

Ghoumazi,

Slimani

et al. 2023

Optica Applicata

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A biochip is made from a two-dimensional photonic crystal waveguide and a rhombus shape that acts as a resonator. This biochip is a sensor that can detect different concentrations of glucose with amounts of 10, 20 and 60% in water. Here, we studied and simulated the concentrations of glucose, which have a refractive index n of 1.3477, 1.3635 and 1.4394, respectively. To identify these quantities, we have proposed a square lattice structure formed by silicon rods with a n = 3.46. With the help of these dielectric rods immersed in the air, it was possible to analyze the detection characteristics. Our results are examined according to COMSOL software by using the PWE method and the finite element method in order to have the PBG and which helped us to create the structure and extract the propagation at resonance, the field norm, the total energy density (TED), the power flow norm (PFN), the transmission and the sensitivity. The concentrations of glucose in water answered yes to the variations for each of the E-field, the TED, the PFN and the sensitivity. These variations are due to the radius r and refractive index n of each concentration used. This structure can help with diabetes self-monitoring.

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Photonic Crystal Chemical/Biochemical Sensors

Cited by 9 publications

References 24 publications

A Novel All-Optical Sensor Design Based on a Tunable Resonant Nanocavity in Photonic Crystal Microstructure Applicable in MEMS Accelerometers

A Novel All-Optical Sensor Design Based on a Tunable Resonant Nanocavity in Photonic Crystal Microstructure Applicable in MEMS Accelerometers

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

Study, simulation and detection of glucose concentrations through a biochip based on two-dimensional photonic crystals

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