Sensitivity enhancement of annular one dimensional photonic crystals temperature sensors with nematic liquid crystals

Abadla, Mazen M.; Elsayed, Hussein A.; Mehaney, Ahmed

doi:10.1088/1402-4896/aba2b0

Cited by 35 publications

(10 citation statements)

References 58 publications

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“…PCs present a new class of periodic structures in which the periodicity of refractive index among one, two, or three dimensions plays the main role in many promising applications (Mehaney et al 2021 ; Abadla et al 2021 , 2020a ; Zhang and Lv 2020 ). Whilst PCs could be designed or fabricated due to the sticking of two materials at least with different optical characteristics (Peng et al 2017 ; Chen et al 2019a ).…”

Section: Introductionmentioning

confidence: 99%

Simple, efficient and accurate method toward the monitoring of ethyl butanoate traces

et al. 2022

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We introduce in this research a simple, accurate, safe, and efficient design for the detection of ethyl butanoate that be present in the dry exhaled breath. In particular, the presence of ethyl butanoate in the dry exhaled breath could be utilized as a platform for the diagnosing of COVID 19. The main idea of this theoretical investigation is based on the inclusion of a cavity layer between a thin layer of Au and the well-known one-dimension photonic crystals. Accordingly, the cavity layer is filled with dry exhaled breath. The numerical results are investigated in the vicinity of the Drude model and transfer matrix method. The investigated results show the appearance of Tamm plasmon resonance in the reflectance spectrum of our design through the IR region. Such resonant mode provides very high sensitivity with the change in the concentration of ethyl butanoate. We have examined the performance of the proposed sensor by calculating its sensitivity, detection limit, detection accuracy, quality factor and figure of merit. The designed sensor could receive sensitivity of 0.3 nm/ppm or 260,486 nm/RIU, resolution of 7 ppm and quality factor of 969.

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Section: Introductionmentioning

confidence: 99%

Simple, efficient and accurate method toward the monitoring of ethyl butanoate traces

et al. 2022

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“…Based on the optical mismatch between the constituents of PCs, PBGs may be introduced. This PBG leads to some new physical properties and numerous potential applications that cannot be investigated using the conventional materials 9 , 10 .…”

Section: Introductionmentioning

confidence: 99%

“…The transfer matrix method (TMM) is considered as an accurate method for manipulating wave propagation through layered media 3 , 6 , 9 . Besides, it is intensively used to describe wave propagation through 1D PCs 3 , 6 , 9 , distributed feedback lasers 23 and uniform and non-uniform gratings 24 . Moreover, some studies discussed the possible usage of this tool in nonlinear optical systems 24 .…”

Section: Introductionmentioning

confidence: 99%

“…For the reasons mentioned above, PC sensors have been widely used in many academic and industrial applications as they provide novel results and high performance 3 , 9 , 19 . Among them also are the PC micro cavities 25 , slot PC waveguides 26 – 31 , slab waveguides 32 , ring-shaped slotted PC waveguides 33 and Nano-cavities 34 – 39 .…”

Section: Introductionmentioning

confidence: 99%

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Biosensors based on novel nonlinear delta-function photonic crystals comprising weak nonlinearities

Mehaney

Abadla

El-Sayed

2022

Sci Rep

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In this research, we propose a novel nonlinear delta-function photonic crystal for detecting sodium iodide (NaI) solution of different concentrations. The suggested structure comprises 50 delta stacks of GaP in an aqueous solution of NaI. These stacks are considered to have weak defocusing nonlinearity in the order of 10−6 (V/m)−2. Due to nonlinearity of the design, a defect-like resonance is formed within the photonic band gap. Thus, the detection of NaI with different concentrations can be easily investigated without the inclusion of a defect through the photonic crystal structure. The effects of both the linear part of the refractive index of GaP layers and nonlinear coefficient on the transmittance value are thoroughly discussed. The numerical findings investigate that the resonant peak begins to split at some critical nonlinearity. In our proposed structure, splitting occurs at about − 12 × 10−6 (V/m)−2. In this regard, the suggested sensor provides a high sensitivity of 409.7 nm/RIU and a wonderful detection limit of 0.0008.

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“…In [7], a 1D ternary annular porous silicon PC has been designed for detection of chemical and biofluids. In [8] and [9], a PC-based optoelectronic device has been designed which can act as a temperature sensor with very high sensitivity. In [10], a wheel cladding with hexa-sectored core PCF has been designed for biodiesel fuel detection and monitoring.…”

Section: Introductionmentioning

confidence: 99%

Design of hexagonal chalcogenide photonic crystal fiber with ultra-flattened dispersion in mid-infrared wavelength spectrum

Raja

Jose

Charlcedony

et al. 2022

Beni-Suef Univ J Basic Appl Sci

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In the last few decades, silica-based photonic crystal fibers (PCFs) have been the subject of extensive research. Traditional silica-based PCFs, however, experience considerable propagation loss when used beyond 3000 nm. On the other hand, soft glasses, notably tellurite, fluoride, and chalcogenide glasses, offer exceptional optical transparency in the mid-IR wavelength region and are a desirable replacement for silica in MIR applications. A comprehensive investigation of chromatic dispersion properties in the hexagonal chalcogenide photonic crystal fibers is presented. The dependency of fiber dispersion on the structural parameters of photonic crystal fibers is thoroughly described in this study. Utilizing the interaction between material and geometrical dispersion, we were able to develop a well-defined framework for making specific predefined dispersion curves. In the mid-infrared wavelength spectrum, we are concerned with flattened, if not ultra-flattened, dispersion behaviors. In the wavelength range of 3500–6500 nm, the hexagonal chalcogenide microstructured fiber was engineered to achieve a typical dispersion profile flattened to within −3.41 to 9.5 ps/[nm–km] for the six-ring structure and −3.91 to 8.17 ps/[nm–km] for the four-ring structure. This proposed chalcogenide PCF can be used for soliton generation, gas sensing, biomedical imaging, supercontinuum generation, and long-distance high-speed communication applications in the mid-infrared wavelength range due to its nearly zero ultra-flattened dispersion characteristics.

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Sensitivity enhancement of annular one dimensional photonic crystals temperature sensors with nematic liquid crystals

Cited by 35 publications

References 58 publications

Simple, efficient and accurate method toward the monitoring of ethyl butanoate traces

Simple, efficient and accurate method toward the monitoring of ethyl butanoate traces

Biosensors based on novel nonlinear delta-function photonic crystals comprising weak nonlinearities

Design of hexagonal chalcogenide photonic crystal fiber with ultra-flattened dispersion in mid-infrared wavelength spectrum

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