We propose a simple UV based soft-lithography process for fabrication of low-loss polymer PSQ-L waveguides. The fabrication process consists of two steps: the imprint step for structuring is done first on the cladding PSQ-LL layer and is followed by a spin-coating step to fill the imprinted features with core PSQ-LH layer material. Even with non-polishing waveguide facets, the extracted scatter...

In this study, the synthesis, characterization and controlled release behavior of new Hollow Silica Nano particles (HSNPs) and Magnetic Silica Nano Particles (MSNPs) were studied. Magnetic Silica Nano particles (MSNPs), as drug delivery vehicles, were synthesized through the coating of Fe3O4 nano-crystals with silica layers. The HSNPs were obtained by removal of Fe3O4 templates with hydrochlori...

1 ABSTRACT A Monte-Carlo programme has been developed to simulate thin film deposition in a square groove. It demonstrates that conformal coating requires (1) the mean free part to be greater than the feature size; (2) a low sticking coefficient for incoming reactant molecules. 2 INTRODUCTION The increasing use of anisotropic etching in the manufacture of integrated circuits is stimulating rese...

nanostructured alumina thin films were coated on stainless steel by sol-gel dip coating method. in order to prevent crack formation, al2o3 films were kept in a solvent bath immediately after coating to reduce the rate of drying. effects of calcination temperature and withdrawal speed on structural properties were analyzed using xrd and sem. topography and thickness of coatings were analyzed by ...

the aim of this work is to synthesize and investigate the performance of yttria-doped zirconia solgelcoatings in the chemical corrosion prevention of zircaloy-4 (zirconium alloy) in a 1 n h2so4environment. the influence of four different molar ratios of water to alkoxide, namely 1, 4, 12, and20, on the coating quality and its corrosion prevention performance was investigated. differentialtherma...

corn )zea mays l. (is one of the most crop that its forage produce is developed in the country. this field research carried out in order to investigate the effect of seed coating with growth promoting bacteria )azotobacter and pseudomonas (and micronutrients )zn, b, mo, cu, fe and mn (on quantitative and qualitative yield of forage corn )zea mays l. sc. 640 (.the experiment design consisted of ...

The enhancement of the biological properties of Ti by surface doping with hydroxyapatite (HA) is of great significance, especially for orthodontic applications. This study addressed the effects of HA particle size in the electrolyte suspension on the characteristics and biological properties of thin titania-based coatings produced on Ti-6Al-4V alloy by plasma electrolytic oxidation (PEO). Detai...

CWFs are prepared by a multi-step coating process using hybrid of GNPs/CB in DI water followed the cold-pressing process. used as heaters and concept large size heating device based on arrays is designed fabricated.