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Titre : Étude de microcavités à base de cristaux photoniques : Application aux capteurs RI à haute sensibilité. Type de document : texte imprimé Auteurs : Merzoug Ammari, Auteur ; Farida Hobar, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 96 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
ElectroniqueTags : Cristaux photoniques Microcavités Capteurs à indice de réfraction Facteur de
qualité Photonic crystal Microcavity Refractive index sensors Quality factor FDTD البلورات الضوئية استشعار انكسار فجوة عامل جودةIndex. décimale : 621 Electronique Résumé : In recent years, various devices based on Photonic Crystal material are designed and
fabricated such as Multiplexers, Filters and Sensors etc. Optical Sensors based on a Photonic principle have also a wide range of applications in the field of health care, defense, security, automotive, aerospace, environment and food quality control.
Photonic crystals with one-and two-dimensional have been studied for a variety of refractive index sensing applications. In this work, we propose a new design principle of two-dimensional photonic crystal (PC) refractive index sensors with high transmission and sensitivity simultaneously. The proposed sensor is made of two waveguide couplers and one microcavity which is obtained by varying the radius of one air hole in the center of PC structure. The microcavity is separated from the input and output waveguides by many holes of the PC. It is shown that by injecting an analyte such as gas or a liquid into a sensing hole, and thus changing its refractive index, a shift in the resonant wavelength may occur. The transmission spectra, quality factor and sensitivity of the sensor have been analyzed numerically through the finite
difference time domain (FDTD) method. The sensitivity value of the sensor has been found to be 668 nm/RIU with minimum detection limit of 0.0002 RIU, which proves the ability of the structure to produce biosensor PCDiplôme : Doctorat en sciences En ligne : ../theses/electronique/AMM7484.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11316 Étude de microcavités à base de cristaux photoniques : Application aux capteurs RI à haute sensibilité. [texte imprimé] / Merzoug Ammari, Auteur ; Farida Hobar, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2018 . - 96 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
ElectroniqueTags : Cristaux photoniques Microcavités Capteurs à indice de réfraction Facteur de
qualité Photonic crystal Microcavity Refractive index sensors Quality factor FDTD البلورات الضوئية استشعار انكسار فجوة عامل جودةIndex. décimale : 621 Electronique Résumé : In recent years, various devices based on Photonic Crystal material are designed and
fabricated such as Multiplexers, Filters and Sensors etc. Optical Sensors based on a Photonic principle have also a wide range of applications in the field of health care, defense, security, automotive, aerospace, environment and food quality control.
Photonic crystals with one-and two-dimensional have been studied for a variety of refractive index sensing applications. In this work, we propose a new design principle of two-dimensional photonic crystal (PC) refractive index sensors with high transmission and sensitivity simultaneously. The proposed sensor is made of two waveguide couplers and one microcavity which is obtained by varying the radius of one air hole in the center of PC structure. The microcavity is separated from the input and output waveguides by many holes of the PC. It is shown that by injecting an analyte such as gas or a liquid into a sensing hole, and thus changing its refractive index, a shift in the resonant wavelength may occur. The transmission spectra, quality factor and sensitivity of the sensor have been analyzed numerically through the finite
difference time domain (FDTD) method. The sensitivity value of the sensor has been found to be 668 nm/RIU with minimum detection limit of 0.0002 RIU, which proves the ability of the structure to produce biosensor PCDiplôme : Doctorat en sciences En ligne : ../theses/electronique/AMM7484.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11316 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité AMM/7484 AMM/7484 Thèse Bibliothèque principale Thèses Disponible Étude théorique d’un capteur à base d’une structure originale en cristaux photoniques. / Chayma Mosbah
Titre : Étude théorique d’un capteur à base d’une structure originale en cristaux photoniques. Type de document : texte imprimé Auteurs : Chayma Mosbah, Auteur ; Mohamed Bouchemat, Directeur de thèse ; Ahlem Benmerkhi, Directeur de thèse Mention d'édition : 10/12/2020 Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2020 Importance : 140 f. Format : 30 cm. Note générale : Doctorat 3éme CYCLE LMD.
1 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
ElectroniqueTags : Electronique: Micro et Nanotechnologies Cristaux photoniques Microcavités Capteurs à indice de réfraction facteur de qualité Sensibilité FDTD "
photonic crystal microcavity refractive index sensors quality factor sensitivity البلورات الضوئية فجوة استشعار معامل الانكسار الحساسيةIndex. décimale : 621 Electronique Résumé :
In this thesis we consider the study and the design of new structures of refractive index sensors based on two-dimensional photonic crystals, and in particular their exploitation in detection domain. The proposed structures are focalized particularly for detecting the refractive index variation. They consist of a guide / cavity coupling according to two configurations. The first configuration consists of a linear coupling (filter). The second configuration is based on a lateral coupling which consists of a juxtaposed linear cavity parallel to the waveguide. Another original structure proposed consists of an air-slot width-modulated line-defect microcavity.
Simulations are performed using the BandSOLVE and FullWAVE simulation software developed by RSoft, based on the Plane Wave Method (PWE) and the Finite Difference Time Domain method (FDTD), respectively. Firstly, we are optimized the quality factor and the transmission, modifying the physical and geometric key parameters of the structure such as: size, position and shape of holes. We studied the sensitivity by optimizing the detection performance (sensitivity and detection limit). To do this, we introduced an air slot in the cavity center. This configuration makes it possible to considerably increase the light-matter interaction and induces a strong confinement of the light within the cavity. Obtained results concerning the sensitivity are convincing: S = 400
nm / RIU: this structure can be used as an index variation sensor.
Diplôme : Doctorat En ligne : ../theses/electronique/MOS7690.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11524 Étude théorique d’un capteur à base d’une structure originale en cristaux photoniques. [texte imprimé] / Chayma Mosbah, Auteur ; Mohamed Bouchemat, Directeur de thèse ; Ahlem Benmerkhi, Directeur de thèse . - 10/12/2020 . - جامعة الإخوة منتوري قسنطينة, 2020 . - 140 f. ; 30 cm.
Doctorat 3éme CYCLE LMD.
1 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
ElectroniqueTags : Electronique: Micro et Nanotechnologies Cristaux photoniques Microcavités Capteurs à indice de réfraction facteur de qualité Sensibilité FDTD "
photonic crystal microcavity refractive index sensors quality factor sensitivity البلورات الضوئية فجوة استشعار معامل الانكسار الحساسيةIndex. décimale : 621 Electronique Résumé :
In this thesis we consider the study and the design of new structures of refractive index sensors based on two-dimensional photonic crystals, and in particular their exploitation in detection domain. The proposed structures are focalized particularly for detecting the refractive index variation. They consist of a guide / cavity coupling according to two configurations. The first configuration consists of a linear coupling (filter). The second configuration is based on a lateral coupling which consists of a juxtaposed linear cavity parallel to the waveguide. Another original structure proposed consists of an air-slot width-modulated line-defect microcavity.
Simulations are performed using the BandSOLVE and FullWAVE simulation software developed by RSoft, based on the Plane Wave Method (PWE) and the Finite Difference Time Domain method (FDTD), respectively. Firstly, we are optimized the quality factor and the transmission, modifying the physical and geometric key parameters of the structure such as: size, position and shape of holes. We studied the sensitivity by optimizing the detection performance (sensitivity and detection limit). To do this, we introduced an air slot in the cavity center. This configuration makes it possible to considerably increase the light-matter interaction and induces a strong confinement of the light within the cavity. Obtained results concerning the sensitivity are convincing: S = 400
nm / RIU: this structure can be used as an index variation sensor.
Diplôme : Doctorat En ligne : ../theses/electronique/MOS7690.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11524 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité MOS/7690 MOS/7690 Thèse Bibliothèque principale Thèses Disponible
Titre : Contribution à l’élaboration d’un modèle de couplage electromagnétique ligne microstrip - guide d’onde intégré au substrat. Type de document : texte imprimé Auteurs : Farouk Grine, Auteur ; Mohamed-Taoufik Benhabiles, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 109 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles. Langues : Français (fre) Catégories : Français - Anglais
ElectroniqueTags : Guide d’onde intégré au substrat ligne microstrip transition taper trous d'air Méthode de Raccordement des Modes périodicité dans la permittivité Facteur de qualité cavité filtre Substrate integrated waveguide microstrip line tapered transition air holes mode matching method periodically drilled SIW Quality factor cavity filter الدلیل الموجي المدمج في الركیزة، خط مغیر الانتقال ثقوب الھواء تواتر السماحیة عامل الجودة المرشحات و المرننات Index. décimale : 621 Electronique Résumé : The substrate integrated waveguide (SIW) technology is an emerging design and very promising for the development of circuits and components operating in the region of millimeter waves and microwave. Among major advantages of SIW technology is the ability to manufacture a complete circuit in planar form, using a standard printed circuit board or other plan processing techniques. Transitions between the microstrip line and GIS structures represent another important element related to the SIW components. More importantly, it is required to use low-reflection transitions to microstrip in order to integrate SIW circuits with active components, and therefore it is necessary to create low-reflection transitions so that the component design is independent of
the influences of the transitions.
In this context for improving the transition between the microstrip line and the substrate integrated waveguide, we proposed a novel transition based on the idea of good confinement of electromagnetic fields on both sides of the microstrip line. This transition constructed by placing one row of not metallized air-vias on both sides of the microstrip line.
Thereafter, we will present the studies of the cavities and filters based on substrate integrated waveguide technologies by the mode matching Method and extraction of the S parameters .
Finally, microwave filters are essential components in all types of telecommunication systems. The development of future applications of wireless technologies, filters should be compact, lightweight and exhibiting high selectivity with low insertion loss. To achieve these desired properties simultaneously, we will present a new planar cavity, which we used to design the filter.
The idea of this cavity are based on a periodic artificial modification of the main line material with a permittivity of εr1 by drilling air vias in the substrate to reach a specific permittivity εr2. The resonator cavity shows an unloaded Q factor of 815. The new filter shows improved performance in terms of loss and bandwidth.Diplôme : Doctorat En ligne : ../theses/electronique/GRI7186.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10734 Contribution à l’élaboration d’un modèle de couplage electromagnétique ligne microstrip - guide d’onde intégré au substrat. [texte imprimé] / Farouk Grine, Auteur ; Mohamed-Taoufik Benhabiles, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2018 . - 109 f. ; 30 cm.
2 copies imprimées disponibles.
Langues : Français (fre)
Catégories : Français - Anglais
ElectroniqueTags : Guide d’onde intégré au substrat ligne microstrip transition taper trous d'air Méthode de Raccordement des Modes périodicité dans la permittivité Facteur de qualité cavité filtre Substrate integrated waveguide microstrip line tapered transition air holes mode matching method periodically drilled SIW Quality factor cavity filter الدلیل الموجي المدمج في الركیزة، خط مغیر الانتقال ثقوب الھواء تواتر السماحیة عامل الجودة المرشحات و المرننات Index. décimale : 621 Electronique Résumé : The substrate integrated waveguide (SIW) technology is an emerging design and very promising for the development of circuits and components operating in the region of millimeter waves and microwave. Among major advantages of SIW technology is the ability to manufacture a complete circuit in planar form, using a standard printed circuit board or other plan processing techniques. Transitions between the microstrip line and GIS structures represent another important element related to the SIW components. More importantly, it is required to use low-reflection transitions to microstrip in order to integrate SIW circuits with active components, and therefore it is necessary to create low-reflection transitions so that the component design is independent of
the influences of the transitions.
In this context for improving the transition between the microstrip line and the substrate integrated waveguide, we proposed a novel transition based on the idea of good confinement of electromagnetic fields on both sides of the microstrip line. This transition constructed by placing one row of not metallized air-vias on both sides of the microstrip line.
Thereafter, we will present the studies of the cavities and filters based on substrate integrated waveguide technologies by the mode matching Method and extraction of the S parameters .
Finally, microwave filters are essential components in all types of telecommunication systems. The development of future applications of wireless technologies, filters should be compact, lightweight and exhibiting high selectivity with low insertion loss. To achieve these desired properties simultaneously, we will present a new planar cavity, which we used to design the filter.
The idea of this cavity are based on a periodic artificial modification of the main line material with a permittivity of εr1 by drilling air vias in the substrate to reach a specific permittivity εr2. The resonator cavity shows an unloaded Q factor of 815. The new filter shows improved performance in terms of loss and bandwidth.Diplôme : Doctorat En ligne : ../theses/electronique/GRI7186.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10734 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité GRI/7186 GRI/7186 Thèse Bibliothèque principale Thèses Disponible
