Numerical investigation of light localization in generalized Thue–Morse one-dimensional photonic crystal

Asmi, Rihab; Ali, Naim Ben; Kanzari, M.

doi:10.1117/1.jpe.6.034501

Cited by 12 publications

(12 citation statements)

References 21 publications

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“…By following the Sellmeier equation, the variation of the refractive indices of these materials in the studied spectral range 0.9-14 µm was considered constant. Therefore, the considered refractive indexes of TiO 2 and SiO 2 were n H = 2.3 and n L = 1.45, respectively [19]. The optical thicknesses n L,H * d L,H of layers L and H were chosen to satisfy the Bragg's condition [19,20]:…”

Section: Materials Effectmentioning

confidence: 99%

“…Therefore, the considered refractive indexes of TiO 2 and SiO 2 were n H = 2.3 and n L = 1.45, respectively [19]. The optical thicknesses n L,H * d L,H of layers L and H were chosen to satisfy the Bragg's condition [19,20]:…”

Section: Materials Effectmentioning

confidence: 99%

“…The reference wavelength λ 0 determined the layers' optical and geometric thicknesses (n [19,20]; therefore, by changing this wavelength, we again optimized the structure thickness d. The previous parameters of the structure presented in Figure 4 were kept, and we changed only the λ 0 value. In Figure 6a,b, λ 0 became equal to 3.5 µm, thus the structure thickness was reduced to d = 3.02 µm.…”

Section: Reference Wavelength Effectmentioning

confidence: 99%

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Optimized Omnidirectional High-Reflectance Using Octonacci Photonic Crystal for Thermographic Sensing Applications

et al. 2021

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The transmittance of waves through one-dimensional periodic and Octonacci photonic structures was studied using the theoretical transfer matrix method for both wave-polarization-modes. The first structures were made up of the SiO2 and TiO2 materials. The objective here was to obtain a broad omnidirectional high reflector covering the infrared spectrum of a thermographic camera [1–14µm] and, especially, to prevent the transmission of emitted human body peak radiation λmax = 9.341 µm. By comparing the periodic and Octonacci structures, we found that the last structure presented a main and wide photonic band gap near this human radiation. For that, we kept only the Octonacci structure for the rest of the study. The first structure did not give the aspired objective; thus, we replaced the TiO2 layers with yttrium barium copper oxide material, and a significant enhancement of the omnidirectional photonic band gap was found for both TE and TM polarization modes. It was shown that the width of this band was sensitive to the Octonacci iteration number and the optical thickness (by changing the reference wavelength), but it was not affected by the ambient temperature. The number of layers and the thickness of the structure was optimized while improving the omnidirectional high reflector properties.

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Section: Materials Effectmentioning

confidence: 99%

Section: Materials Effectmentioning

confidence: 99%

Section: Reference Wavelength Effectmentioning

confidence: 99%

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Optimized Omnidirectional High-Reflectance Using Octonacci Photonic Crystal for Thermographic Sensing Applications

et al. 2021

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“…Photonic crystals also known photonic band gap materials are made by alternating two or more different materials. They represent the optical analogy to a crystal lattice, where atoms or molecules are periodically arranged and the periodic potential introduces gaps into the energy band structure of the crystal [3][4][5][6][7][8]. There are three different families of photonic structure, according to the direction of materials alternation, namely one-dimensional (1D), twodimensional (2D) and three-dimensional (3D) structures.…”

Section: Introductionmentioning

confidence: 99%

“…In addition, the alternation of materials can be periodic or quasi-periodic (where the alternation of materials follows mathematical sequences). The emergence of these photonic structures [3][4][5][6][7][8] permits to discard several problems of the olds electronic devices such as the called Joule effect [2]. These structures represent a serious opportunity for researchers to study and improve their properties to be suitable in sensing applications.…”

Section: Introductionmentioning

confidence: 99%

Salinity-Temperature Sensor using One-Dimensional Deformed Photonic Crystal

Alsaif

Trabelsi

et al. 2021

Preprint

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In this paper, new salinity and temperature sensor according to deformed one-dimensional photonic structure is proposed. The structure is constructed by alternating the couple of layers Air/Fused-Silica P-times. In the middle of the structure, a cavity containing the seawater is inserted to mesure its salinity and temperature. The Transfer Matrix Method (TMM) is used to simulate the wave-transmittance spectra. It is showed that, the quality factor (Q-factor) of the resonance peaks depends to the repetitive number (P) of layers. After that, the thickness of the layers is deformed by changing the deformation degree (h). The parameters P and h are optimized to get the maximal Q-factor with the minimal number of layers and structure’s thickness. The best sensitivity [[EQUATION]] of the proposed salinity sensor is 558.82 nm/RFIU with a detection limit of 0.0034 RFIU. In addition, the best sensitivity [[EQUATION]] of the designed temperature sensor is 600 nm/RFIU with a detection limit of 0.0005 RFIU.

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The Highest and Lowest Photonic Bandwidths, Absorption Coefficients and Field Localizations among Common 1D Quasiperiodic Structures Containing Graphene and Silicon Dioxide

Rahimi

2019

Silicon

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Numerical investigation of light localization in generalized Thue–Morse one-dimensional photonic crystal

Cited by 12 publications

References 21 publications

Optimized Omnidirectional High-Reflectance Using Octonacci Photonic Crystal for Thermographic Sensing Applications

Optimized Omnidirectional High-Reflectance Using Octonacci Photonic Crystal for Thermographic Sensing Applications

Salinity-Temperature Sensor using One-Dimensional Deformed Photonic Crystal

The Highest and Lowest Photonic Bandwidths, Absorption Coefficients and Field Localizations among Common 1D Quasiperiodic Structures Containing Graphene and Silicon Dioxide

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