Laser surface treatment is a very useful technology for the fabrication of functional surfaces. In this study, novel antifouling surfaces are fabricated by laser cladding TC4 and Ni60 mixed materials in various mass ratios on 316L stainless steel substrates. Parametric studies carried out to investigate effects powder parameters performance clad coatings (LCCs). The mechanism LCCs investigated ...

A wavelength-switchable L-band erbium-doped fiber laser (EDFL) assisted by an artificially controlled backscattering (ACB) reflector is here presented. This random was inscribed femtosecond (fs) direct writing on the axial axis of a multimode with 50 μm core and 125 cladding length 17 mm. microstructure placed inside surgical syringe to be positioned in center high-precision rotation mount accu...

We demonstrate an optofluidic evanescent laser based on a solid circular distributed feedback grating with the dye solution acting as the cladding layer. The laser mode is confined within the grating and experiences optical gain via the interaction between its evanescent component with the dye solution. Above a pump energy of 9.5 J /pulse, the laser exhibited single mode operation at 571 nm. St...

Hydroxyapatite (HA) is one of the most commonly used materials for the coating of bioceramic titanium (Ti) alloys. However, HA has poor mechanical properties and a low bonding strength. Accordingly, the present study replaces HA with a composite coating material consisting of fluorapatite (FA) and 20 wt % yttria (3 mol %) stabilized zirconia (ZrO₂, 3Y-TZP). The FA/ZrO₂ coatings are deposited on...