Photonic Nano Dielectric Crystal Cavity with Infiltrated Biosamples for Refractive Index Sensing Application

Ansari, Juhi Nishat; Gowre, Sanjay Kumar; Sonth, Mahesh V.; Gadgay, Baswaraj; Roy, Aashis S.

doi:10.1080/10584587.2020.1859827

Cited by 8 publications

(3 citation statements)

References 20 publications

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“…The rapid increase in communication tra c has created the demand for wide bandwidth and fast computing speed. Optical signal processing using all optical devices will overcome the speed limitations imposed by electronic devices [1][2][3], increases data-rate capacity and deceases the power consumption as it eliminates optical-to-electrical conversion [4][5][6]. These properties of the optical devices make them as outstanding for data processing and high-speed computing in optical communication.…”

Section: Introductionmentioning

confidence: 99%

Design and simulation of reconfigurable optical logic gates for integrated optical circuits

Soma

Gowre²,

Sonth³

et al. 2023

Opt Quant Electron

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The proposed work presents a new structure that can be used as recon gurable optical logic gates. This structure is constructed in a two dimensional (2D) photonic crystals (PhCs). Logic gates like AND, NOT and NOR are realized by using the proposed structure. These optical logic gates are constructed in 6 µm * 6 µm in 2D PhCs square lattice with a lattice constant a=0.648 µm. All the gates are realized by creating structural disorders in the cross-waveguide geometries of 2D PhCs. The several performance parameters are examined using this structure and observed that proposed structure has reduced size, fast response time of 0.46ps, high bit rates of 2.14Tbits/sec and better contrast ratio of 8.6dB against the existing designs. The signal amplitude larger than 0.5 arbitrary units (a.u.) and less than 0.1 (a.u.) at output are considered as logic '1' and '0' respectively. The plane wave expansion (PWE) is utilised to get the band gap for this logic gate 2D PhC structure and the nite difference time domain (FDTD) technique is utilised to investigate their performance in terms of light travelling in the crystal lattice structure. The gates are implemented in third optical window at the wavelength of 1.55 µm and can be used in photonic integrated circuits for signal processing in optical communication.

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Section: Introductionmentioning

confidence: 99%

Design and simulation of reconfigurable optical logic gates for integrated optical circuits

Soma

Gowre²,

Sonth³

et al. 2023

Opt Quant Electron

Self Cite

View full text Add to dashboard Cite

show abstract

“…Hence, they are various current sensors, like pyroelectric sensor, piezoelectric sensor, electrical sensor, and optical sensor. Knowing that among the optical sensors there is one that is used in the localization of blood fluid glucose with the purpose of shielding against electromagnetic interference (EMI) with light, high sensitivity and high accuracy [2]. Now, in order to develop ultra-compact optical sensors, different nano-and micrometer photonic structures have been used, such as optical decoders based on photonic crystal (PhC) [3], Mach-Zehnder interferometers (MZI) [4],electro-optical encoders based on PhC [5], surface plasmon resonators [6], micro-ring resonators [7,8], ultra-compact ultra-fast comparator based on PhC [9] and photonic crystal (PhC) cavities [10].…”

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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“…Light propagation in PC PBG features is described by Maxwell's equations. PCbased sensors have found numerous applications, including temperature sensing [13], pressure sensing [14], gas sensing [15], mechanical sensing [16], biosensing [17][18], and many more in the past decade.…”

Section: Introductionmentioning

confidence: 99%

A 2D GaAs-Based Photonic Crystal Biosensor for Malaria Detection

Manjunatha N,

Sarika Raga,

Sanjay Kumar Gowre

et al. 2023

Int. j. eng. technol. innov.

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Gallium arsenide (GaAs) composite semi-conductive rods with an air background lattice act as the building blocks for the photonic crystal structure used of a biosensor. The study presents a biosensor of a two-rod nano-cavity for identifying distinct stages of plasmodium falciparum in red blood cells (RBCs) in the early detection of malaria. The proposed biosensor enables the creation of a label-free biosensing environment in which optical and dispersion properties are investigated using plane wave expansion (PWE) and finite-difference time-domain (FDTD) techniques. The biosensor, with a sensing region for an analyte, is utilized to detect a change in refractive index to differentiate between normal RBCs and plasmodium falciparum-infected cells. The results show that the biosensor has a high sensitivity of 798.143 nm/RIU, a high Q-factor of 9881.926, a low detection limit (δ) of 222.4 × 10-6 RIU, a high FOM of 4496.079 RIU-1, and a compact area of 46.14 µm2.

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Photonic Nano Dielectric Crystal Cavity with Infiltrated Biosamples for Refractive Index Sensing Application

Cited by 8 publications

References 20 publications

Design and simulation of reconfigurable optical logic gates for integrated optical circuits

Design and simulation of reconfigurable optical logic gates for integrated optical circuits

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

A 2D GaAs-Based Photonic Crystal Biosensor for Malaria Detection

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