In this paper, tungsten oxide thin films were successfully synthesized by the laser pulse deposition (PLD) method using a pulsed (ND-YAG) and wavelength (1064 nm) on glass substrate at different fluencies. The effect of increasing fluency, optical structural properties WO3 nanoparticle films, was investigated UV-Visible spectrophotometer, X-Ray diffraction (XRD), atomic force microscope (AFM) S...

In this paper, results on preparation of stable and uniform SERS solid substrates using macroporous silicon (pSi) with deposited silver and gold are presented. Macroporous silicon is produced by anodisation of p-type silicon in hydrofluoric acid. The as prepared pSi is then used as a template for Ag and Au depositions. The noble metals were deposited in three different ways: by immersion in sil...

10 We report on a time-of-flight mass spectrometric study of laser fluence dependencies in the 532 nm ablation of SnO2 targets. At all fluences investigated, SnO and Sn2O2 are the primary neutral gas-phase species. The relative yield of neutral tin-containing species increases exponentially up to a fluence of ∼1.9 × 108 W cm−2, and saturates at higher fluences. The yield of metal oxide clusters...

graphene oxide was prepared using modified hummers method. stable ethylene-glycol nanofluids containing graphene oxide nanosheets were provided. nd: yag pulsed laser was applied to prepare reduced nanofluids. experimental results revealed that thermal conductivity of the nanofluids is increased with increasing the concentration of graphene oxide (go) in ethylene glycol. the enhancement ratio of...

The effects of growth rate (Gr), deposition temperature (Td), film thickness (tF ), and substrate induced strain (ǫ) on morphological, crystallographic and magnetic characteristics of equiatomic CoPt epitaxial films synthesized with pulsed laser deposition (PLD) are investigated. The (001) oriented single crystal substrates of MgO, SrTiO3 and LaAlO3 provide different degree of epitaxial strain ...

Pulsed laser ablation is a simple, but versatile, experimental method that finds use as a means of patterning a very diverse range of materials, and in wide areas of thin film deposition and multi-layer research. Superficially, at least, the technique is conceptually simple also, but this apparent simplicity hides a wealth of fascinating, and still incompletely understood, chemical physics. Thi...

Pulsed UV laser machining is an established method for production of 2.5D and 3D features in a wide variety of materials. In addition to direct laser patterning by ablation, exposure of photoresist using pulsed lasers can eliminate the need for large area contact photomasks. Half-tone machining, either by ablation or exposure, allows the production of high quality shallow features where the sur...