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Biomedical imaging has become one of the most relied-upon tools in health-care for diagnosis and treatment of human diseases. The evolution of medical imaging from plain radiography (radioisotope imaging), to x-ray imaging, to computer-assisted tomography (CAT scans), to ultrasound imaging, and to magnetic resonance imaging (MRI) has led to revolutionary improvements in the quality of healthcare available...
In the presence of dispersion and dissipation, we deduce a modified plane wave expansion method to calculate photonic bands in 2-D honeycomb lattice photonic crystals (PCs) composed of plasma-coated layers. A linearization technique of the generalized eigenvalue problem for a complex matrix of wave expansion is used to obtain the photonic band structures. In the transverse magnetic mode, when plasma-coating...
To avoid the adverse effect of unstable nonlinear progress on the design of all-optical logic gates, the broadband defect mode of one-dimensional photonic crystal with dual-defects has been studied. By using transfer matrix method, influences of period number and refractive indices on crystal’s transmission spectrum are analyzed. It is pointed out that with proper parameters, broadband defect mode,...
Experimental and modeling studies concerning the etching of InP by chlorine plasma have been achieved. Chlorine plasma discharge has been analyzed using Langmuir probe. The latter allows to measure the electron density and temperature as a function of ICP reactor parameters such as RF power, chlorine flow rate and pressure. These two parameters play a crucial role in the modeling of plasma etch process...
Several structures produced by dry etching of InP substrates are studied. RIE (Reactive Ion Etching) and ICP (Inductively Coupled Plasma) dry etching procedures were compared. The characterization was carried out by spectrum imaging Cathodoluminescence (CL). The main changes induced by both procedures in the InP substrates were studied. In particular, the creation of defects and the generation of...
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