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Titre : Etude theorique des materiaux a bandes interdites photoniques bidimensionnels : applications dans le domaine du guidage optique et la detection Type de document : texte imprimé Auteurs : Feida Bougriou, Auteur ; Touraya Bouchemat -Boumaza, Directeur de thèse Editeur : constantine [Algérie] : Université Constantine 1 Année de publication : 2013 Importance : 158 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles Langues : Français (fre) Catégories : Français - Anglais
ElectroniqueTags : cristaux photoniques guide d'ondes à CP guides virages Senseur à haute
sensibilité la méthode FDTD la méthode PWE Photonic crystal bend waveguide PC waveguide PC sensor High sensitivity FDTD method PWE method البلورات الفوتونیة موجه الموجة في البلورات الفوتونیة موجه الموجة المنحني اجهزة الاستشعار الحساسیة العالیة طریقة
FDTD طریقة
PWE FDTDIndex. décimale : 621 Electronique Résumé : Photonic crystals are nanostructured materials with submicron feature sizes allow unprecedented control of light confinement and enable the miniaturization of main optical functions. Precisely, this thesis is a body of work that builds on the design and development of new components based on photonic crystals for applications in light guiding and high sensitivity detection, using a method based on solving Maxwell's equations finite difference in the 2D-FDTD dimensional time domain.
The single line defect photonic crystal waveguide is one of the devices that have been widely explored. Most photonic crystal waveguide structures are designed and fabricated in triangular lattice with circular holes. We designed a single row W1 triangular lattice with a
judicious choice of parameters guide. We evaluated the transmission in the guide and we got a maximum transmission about of 60% on the entire band related to the PBG. Another type of guide has been designed, it is the bend guide W1 triangular lattice, by optimizing the topology of the bend, we have shown that the transmission bend circuit is much improved over a wide range.
PC waveguide is one class of PC devices that has been demonstrated for RI (refractive index) measurements. For the development of two dimensional reconfigurable photonic circuits, we propose an RI sensor based on single line PCW structure.
When the PC’s air holes are full of homogenous de-ionized water, the wavelength position of band edges of this sensor will shift accordingly due to the variation of RI. The sensor is sensitive to the change of RI in the air hole and it can be optimized to realize high sensitivity,wide measurement range and improved transmission. It has been observed that a 306 nm
wavelength position of the lower band edge shift was observed corresponding to a sensitivity of more than 927 nm/RIU (refractive index nit).Diplôme : Doctorat en sciences En ligne : ../theses/electronique/BOU6431.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=9455 Etude theorique des materiaux a bandes interdites photoniques bidimensionnels : applications dans le domaine du guidage optique et la detection [texte imprimé] / Feida Bougriou, Auteur ; Touraya Bouchemat -Boumaza, Directeur de thèse . - constantine [Algérie] : Université Constantine 1, 2013 . - 158 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
ElectroniqueTags : cristaux photoniques guide d'ondes à CP guides virages Senseur à haute
sensibilité la méthode FDTD la méthode PWE Photonic crystal bend waveguide PC waveguide PC sensor High sensitivity FDTD method PWE method البلورات الفوتونیة موجه الموجة في البلورات الفوتونیة موجه الموجة المنحني اجهزة الاستشعار الحساسیة العالیة طریقة
FDTD طریقة
PWE FDTDIndex. décimale : 621 Electronique Résumé : Photonic crystals are nanostructured materials with submicron feature sizes allow unprecedented control of light confinement and enable the miniaturization of main optical functions. Precisely, this thesis is a body of work that builds on the design and development of new components based on photonic crystals for applications in light guiding and high sensitivity detection, using a method based on solving Maxwell's equations finite difference in the 2D-FDTD dimensional time domain.
The single line defect photonic crystal waveguide is one of the devices that have been widely explored. Most photonic crystal waveguide structures are designed and fabricated in triangular lattice with circular holes. We designed a single row W1 triangular lattice with a
judicious choice of parameters guide. We evaluated the transmission in the guide and we got a maximum transmission about of 60% on the entire band related to the PBG. Another type of guide has been designed, it is the bend guide W1 triangular lattice, by optimizing the topology of the bend, we have shown that the transmission bend circuit is much improved over a wide range.
PC waveguide is one class of PC devices that has been demonstrated for RI (refractive index) measurements. For the development of two dimensional reconfigurable photonic circuits, we propose an RI sensor based on single line PCW structure.
When the PC’s air holes are full of homogenous de-ionized water, the wavelength position of band edges of this sensor will shift accordingly due to the variation of RI. The sensor is sensitive to the change of RI in the air hole and it can be optimized to realize high sensitivity,wide measurement range and improved transmission. It has been observed that a 306 nm
wavelength position of the lower band edge shift was observed corresponding to a sensitivity of more than 927 nm/RIU (refractive index nit).Diplôme : Doctorat en sciences En ligne : ../theses/electronique/BOU6431.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=9455 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BOU/6431 BOU/6431 Thèse Bibliothèque principale Thèses Disponible Documents numériques
BOU6431_1.pdfAdobe Acrobat PDF
texte intégraleAdobe Acrobat PDFApplication des méthodes numériques pour la détermination des caractéristiques physiques et optiques des structures périodiques à base des matériaux artificiels. / Chouaib Chettah
Titre : Application des méthodes numériques pour la détermination des caractéristiques physiques et optiques des structures périodiques à base des matériaux artificiels. Type de document : texte imprimé Auteurs : Chouaib Chettah, Auteur ; Abdelhafid Chaabi, Directeur de thèse Mention d'édition : 18/07/2021 Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2021 Importance : 138 f. Format : 30 cm. Note générale : 1 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
ElectroniqueTags : Structures périodiques matériaux artificiels cristal photonique FDTD 1D&2D-PCs PWE multicouche unidimensionnelle filtres sélectifs TMM Periodic structures artificial materials photonic crystal multilayer one-dimensional selective filters الهياكل الدورية المعادن الاصطناعية البلوري الفوتوني PWE FDTDمتعدد الطبقات أحادي البعد مرشحات انتقائية Index. décimale : 621 Electronique Résumé :
This work was devoted to the study of the characteristics of periodic structures of artificial materials by the application of numerical methods. Our interest was focused on the study of multilayer structures with one-dimensional photonic crystal by proposing a new design and analysis of these structures. We first recalled the periodic structures based on photonic crystals, their different types, as well as the notions of photonic bands and the basic materials used in these structures. The second chapter approached the FDTD method, we started with the theoretical presentation of the method, then its applications in structures (1D & 2D-PCs). The third chapter, treated the method of plane waves PWE and its application in resonators. We ended with the fourth chapter, where we proposed a new design and analysis of a onedimensional photonic crystal structure (1D-PC), based on the use of artificial materials (dielectricsuperconductors-plasmas) for the design of selective filters, by studying their transmission coefficient and the effects of varying the different parameters (thicknesses, angle of incidence,
magnetic field, temperature) using the TMM method. In the end, we succeeded in making a filter, with a high quality factor, better than the filters of the previous structures; which finds great application utility in the field of optical communication.
Diplôme : Doctorat en sciences En ligne : ../theses/electronique/CHE7795.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11627 Application des méthodes numériques pour la détermination des caractéristiques physiques et optiques des structures périodiques à base des matériaux artificiels. [texte imprimé] / Chouaib Chettah, Auteur ; Abdelhafid Chaabi, Directeur de thèse . - 18/07/2021 . - جامعة الإخوة منتوري قسنطينة, 2021 . - 138 f. ; 30 cm.
1 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
ElectroniqueTags : Structures périodiques matériaux artificiels cristal photonique FDTD 1D&2D-PCs PWE multicouche unidimensionnelle filtres sélectifs TMM Periodic structures artificial materials photonic crystal multilayer one-dimensional selective filters الهياكل الدورية المعادن الاصطناعية البلوري الفوتوني PWE FDTDمتعدد الطبقات أحادي البعد مرشحات انتقائية Index. décimale : 621 Electronique Résumé :
This work was devoted to the study of the characteristics of periodic structures of artificial materials by the application of numerical methods. Our interest was focused on the study of multilayer structures with one-dimensional photonic crystal by proposing a new design and analysis of these structures. We first recalled the periodic structures based on photonic crystals, their different types, as well as the notions of photonic bands and the basic materials used in these structures. The second chapter approached the FDTD method, we started with the theoretical presentation of the method, then its applications in structures (1D & 2D-PCs). The third chapter, treated the method of plane waves PWE and its application in resonators. We ended with the fourth chapter, where we proposed a new design and analysis of a onedimensional photonic crystal structure (1D-PC), based on the use of artificial materials (dielectricsuperconductors-plasmas) for the design of selective filters, by studying their transmission coefficient and the effects of varying the different parameters (thicknesses, angle of incidence,
magnetic field, temperature) using the TMM method. In the end, we succeeded in making a filter, with a high quality factor, better than the filters of the previous structures; which finds great application utility in the field of optical communication.
Diplôme : Doctorat en sciences En ligne : ../theses/electronique/CHE7795.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=11627 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité CHE/7795 CHE/7795 Thèse Bibliothèque principale Thèses Disponible 
Titre : Conception des filtres optiques a base de cristaux photoniques pour application dans les routeurs optiques dans les reseaux de telecomunications optiques Type de document : texte imprimé Auteurs : Abdelali Boudissa, Auteur ; Malek Benslama, Directeur de thèse Editeur : Constantine : Université Mentouri Constantine Année de publication : 2013 Importance : 87 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles Langues : Français (fre) Catégories : Français - Anglais
ElectroniqueTags : Cristaux photoniques couplage cavité-guide d’onde cavité résonante filtre optique Filtre Passe Bande Channel Drop Filter la méthode FDTD la méthode PWE Photonic crystal coupled cavity waveguides resonant cavity optical filter Band Pass Filter FDTD method PWE method البلورات الصوئية الدليل الموجي تجويف رنان مرشح بضري ممر الموجة طريقةPW طريقةFDTD مرشح قناة قطرة Index. décimale : 621 Electronique Résumé : The implanting of optical routers in telecommunication optical network necessitates the modeling constituent’s amounts and approvals which encircle the considered router. For it, in this work, we investigate three types of filters with base 2D photonic crystals. The first, it is a narrow band optical filter, this system is constituted with two waves guides obtained by omitting one row of holes of the photonic crystal, coupled among them by a resonant cavity formed by a point of defect in the crystal. Near the resonant frequency (??a/2πc = 0.38), light from the input waveguide can couple into the cavity, and the cavity in turn can couple into the output waveguide, is that the peak transmission is precisely 100%.Then a Band Pass Filter is proposed, the out put transmission spectra of our filter covered three band. Band I covers the wavelength range from 1.331 to 1.355 μm has 86% of transmission power, Band II, from 1.390 to 1.427 μm, has 98% of the transmission power and Band III from 1.46 to 1.507 μm, and has 27% of the transmission power. The full width at half maximum bandwidth of these bands is 9.7, 13.1 and 16.4 nm,respectively. And finally a new constitution of “Channel Drop Filter " is simulated, it consists of two waveguides bends coupled among them by linear resonant cavity. The power dropped from the input waveguide bend into the drop channel at 1550 nm (the resonant frequency)is about 89%; the power transferred to the other channels is less than 5%. The Band of out put transmission spectra of the drop channel cover the wavelength range from 1505 to 1600 nm and the bandwidth is about 12.7 nm and the Q factor is 122.
The temporal and spectral behavior of the device is studied using two dimensional Finite Difference Time Domain Method (2D-FDTD) and Plane Wave Expansion (PWE) methods respectively.Diplôme : Doctorat en sciences En ligne : ../theses/electronique/BOU6325.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=6291 Conception des filtres optiques a base de cristaux photoniques pour application dans les routeurs optiques dans les reseaux de telecomunications optiques [texte imprimé] / Abdelali Boudissa, Auteur ; Malek Benslama, Directeur de thèse . - Constantine : Université Mentouri Constantine, 2013 . - 87 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
ElectroniqueTags : Cristaux photoniques couplage cavité-guide d’onde cavité résonante filtre optique Filtre Passe Bande Channel Drop Filter la méthode FDTD la méthode PWE Photonic crystal coupled cavity waveguides resonant cavity optical filter Band Pass Filter FDTD method PWE method البلورات الصوئية الدليل الموجي تجويف رنان مرشح بضري ممر الموجة طريقةPW طريقةFDTD مرشح قناة قطرة Index. décimale : 621 Electronique Résumé : The implanting of optical routers in telecommunication optical network necessitates the modeling constituent’s amounts and approvals which encircle the considered router. For it, in this work, we investigate three types of filters with base 2D photonic crystals. The first, it is a narrow band optical filter, this system is constituted with two waves guides obtained by omitting one row of holes of the photonic crystal, coupled among them by a resonant cavity formed by a point of defect in the crystal. Near the resonant frequency (??a/2πc = 0.38), light from the input waveguide can couple into the cavity, and the cavity in turn can couple into the output waveguide, is that the peak transmission is precisely 100%.Then a Band Pass Filter is proposed, the out put transmission spectra of our filter covered three band. Band I covers the wavelength range from 1.331 to 1.355 μm has 86% of transmission power, Band II, from 1.390 to 1.427 μm, has 98% of the transmission power and Band III from 1.46 to 1.507 μm, and has 27% of the transmission power. The full width at half maximum bandwidth of these bands is 9.7, 13.1 and 16.4 nm,respectively. And finally a new constitution of “Channel Drop Filter " is simulated, it consists of two waveguides bends coupled among them by linear resonant cavity. The power dropped from the input waveguide bend into the drop channel at 1550 nm (the resonant frequency)is about 89%; the power transferred to the other channels is less than 5%. The Band of out put transmission spectra of the drop channel cover the wavelength range from 1505 to 1600 nm and the bandwidth is about 12.7 nm and the Q factor is 122.
The temporal and spectral behavior of the device is studied using two dimensional Finite Difference Time Domain Method (2D-FDTD) and Plane Wave Expansion (PWE) methods respectively.Diplôme : Doctorat en sciences En ligne : ../theses/electronique/BOU6325.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=6291 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité BOU/6325 BOU/6325 Thèse Bibliothèque principale Thèses Disponible Documents numériques
texte intégraleAdobe Acrobat PDF
Titre : Étude des composants à base de cristaux photoniques : Application dans le domaine du démultiplexage et de la détection. Type de document : texte imprimé Auteurs : Safia Arafa, Auteur ; Mohamed Bouchemat, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2018 Importance : 150 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
ElectroniqueTags : cristaux photoniques l'optique intégrée biocapteurs démultiplexeur cavité FDTD Photonic crystal integrated optics biosensors demultiplexer cavity لبلورات الضوئية البصريات المتكاملة أجهزة الاستشعار البيولوجية مزيلات الدمج التجويف Index. décimale : 621 Electronique Résumé : Nowadays, the development of biological sensors has become a major issue in order to meet the current and the
future needs in diverse areas demanded. Real-time detection or analysis should be preferred and the response should be easy to read and extremely fast. In parallel, the progress of nanotechnologies and in particular those of photonic crystals, which make it possible to manipulate the light at nanometric resolution, and thus at the biomolecule scale, offers the possibility of achieving a new high-performed detection platform.
In this context, this thesis aims to study and to design refractive index biosensors based on photonic crystals. The structures proposed are essentially based on a H0 cavity coupled waveguide system. The main objective of our work remains the enhancement of light confinement within the cavity area. In the first part of this work we analyze in detail the influence of the cavity geometry on the detection performances. Thus, we present a configuration based on ringed air holes to improve the detection properties. In order to integrate several detection units in the same photonic crystal platform, the wavelength division demultiplexing (WDM) technique to spatially separate the responses of the integrated biosensors will be studied: Two structures of demultiplexers based on a selective filtering will also be presented. As for the case of a single biosensor and based on this technique the configurations of classical and ringed biosensor array will be studied and simultaneously evaluated. The optical properties of these photonic structures will be numerically evaluated by performing simulations based on the finite difference time domain (FDTD) method. The obtained results indicate that the response of each sensor unit shifts independently in terms of refractive index variations. Accordingly, a sensitivity of 450 nm / RIU and a crosstalk of less than -43.78 dB have been achieved for the ringed configuration, while maintaining a quality factor as high as 5.74×104. These features make the designed structure a promising platform for performing monolithic integration and high multiplexed label-free detection.Diplôme : Doctorat En ligne : ../theses/electronique/ARA7278.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10893 Étude des composants à base de cristaux photoniques : Application dans le domaine du démultiplexage et de la détection. [texte imprimé] / Safia Arafa, Auteur ; Mohamed Bouchemat, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2018 . - 150 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
ElectroniqueTags : cristaux photoniques l'optique intégrée biocapteurs démultiplexeur cavité FDTD Photonic crystal integrated optics biosensors demultiplexer cavity لبلورات الضوئية البصريات المتكاملة أجهزة الاستشعار البيولوجية مزيلات الدمج التجويف Index. décimale : 621 Electronique Résumé : Nowadays, the development of biological sensors has become a major issue in order to meet the current and the
future needs in diverse areas demanded. Real-time detection or analysis should be preferred and the response should be easy to read and extremely fast. In parallel, the progress of nanotechnologies and in particular those of photonic crystals, which make it possible to manipulate the light at nanometric resolution, and thus at the biomolecule scale, offers the possibility of achieving a new high-performed detection platform.
In this context, this thesis aims to study and to design refractive index biosensors based on photonic crystals. The structures proposed are essentially based on a H0 cavity coupled waveguide system. The main objective of our work remains the enhancement of light confinement within the cavity area. In the first part of this work we analyze in detail the influence of the cavity geometry on the detection performances. Thus, we present a configuration based on ringed air holes to improve the detection properties. In order to integrate several detection units in the same photonic crystal platform, the wavelength division demultiplexing (WDM) technique to spatially separate the responses of the integrated biosensors will be studied: Two structures of demultiplexers based on a selective filtering will also be presented. As for the case of a single biosensor and based on this technique the configurations of classical and ringed biosensor array will be studied and simultaneously evaluated. The optical properties of these photonic structures will be numerically evaluated by performing simulations based on the finite difference time domain (FDTD) method. The obtained results indicate that the response of each sensor unit shifts independently in terms of refractive index variations. Accordingly, a sensitivity of 450 nm / RIU and a crosstalk of less than -43.78 dB have been achieved for the ringed configuration, while maintaining a quality factor as high as 5.74×104. These features make the designed structure a promising platform for performing monolithic integration and high multiplexed label-free detection.Diplôme : Doctorat En ligne : ../theses/electronique/ARA7278.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10893 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité ARA/7278 ARA/7278 Thèse Bibliothèque principale Thèses Disponible
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
