13 research outputs found
Tunability of photonic band gaps in one- and two-dimensional photonic crystals based on ZnS particles embedded in TiO2 matrix
A T-branch diplexer based on directional couplers and resonant cavities in photonic crystal
In this paper a T-branch optical diplexer in two dimensional (2D) photonic crystal (PhC) to select two telecommunication wavelengths 1493.6nm and1553nm is investigated. In our design directional couplers (DC) and resonant cavity (RC) are utilized. A square lattice of silicon (Si) rods in air is used as fundamental structure. The coupling regions consist of three entire rows of decreased Si rods. Plane wave expansion method (PWE) and finite difference time domain (FDTD) method are utilized to analyze and simulate the characteristics of the designed device. The average transmission efficiency of our proposed diplexer is about 99.75%. High quality factor and extremely small crosstalk were achieved. The total size of the suggested design is 272.214 μm2, which is very suitable for nanotechnology based demultiplexing applications
Etude et analyse des diagrammes de bandes des cristaux photoniques à base de nanoparticules de CdS dans une matrice de verre"
International audienc
Effet de la variation de l'indice optique sur les bandes interdites de cristaux photoniques 2D a base de nanoparticules
International audienc
Contribution à l'étude de la modélisation par FDTD de cristaux photoniques à base de nanoparticules
International audienc
Etude de cristaux photoniques à base de nanoparticules de semiconducteurs dans des verres
4 pagesInternational audienc
Cristaux photoniques à base de nanoparticules de ZnS enterrées dans une matrice de verre
3 pagesNational audienc
Modélisation FDTD de cristaux photoniques à base de nanoparticules de PbS dans des Verres
International audienc
Miroirs à base de nanoparticules métalliques dans du verre : étude théorique
2 pagesNational audienc
Photonic band gaps in one-and two-dimensional photonic crystals based on a nanocomposite of ZnS and glass
International audienc