A5053348149- Nonlinear Optical Materials Studies
- Advanced Fiber Optic Sensors
- Laser-Ablation Synthesis of Nanoparticles
- Solid State Laser Technologies
- Laser Applications in Dentistry and Medicine
- Laser Design and Applications
- Nonlinear Optical Materials Research
- Gold and Silver Nanoparticles Synthesis and Applications
- Photonic and Optical Devices
- Analytical Chemistry and Sensors
- Advanced Fiber Laser Technologies
- Dermatologic Treatments and Research
- Photonic Crystal and Fiber Optics
- Laser-Matter Interactions and Applications
- Gas Sensing Nanomaterials and Sensors
- Photorefractive and Nonlinear Optics
- Nanocluster Synthesis and Applications
- Laser Material Processing Techniques
- Bee Products Chemical Analysis
- Porphyrin and Phthalocyanine Chemistry
- Laser-induced spectroscopy and plasma
- Semiconductor Lasers and Optical Devices
- Carbon and Quantum Dots Applications
- Medical and Biological Ozone Research
- Luminescence Properties of Advanced Materials
University of Technology Malaysia
2016-2025
University of Malaya
2020-2023
Alliance University
2011
Abstract This paper reports the synthesis and characterization of some spherical crystalline copper (Cu), nickel (Ni), their bimetallic (Cu–Ni) nanoparticles (NPs) produced in deionized (DI) water via pulse laser ablation liquid (PLAL) technique. XRD SAED patterns showed high crystallinity synthesized nanostructures with face-centered cubic structure. The TEM HRTEM images revealed nucleation nanocrystals a size range 2.5 – 25 nm, no remarkable aggregation was seen. Some core–shell oxidized...
The aim of this study is to investigate the effect gold nanoparticles (AuNPs) in photobiomodulation therapy (PBMT) on wound healing process.AuNPs are synthesized by Q-switched Nd:YAG laser ablation technique. Cutaneous induced 45 Sprague Dawley rats its dorsal part and then randomly divided into three groups. One group serves as non-treatment (GC) another two groups subjected AuNPs with without PBMT. About 808 nm diode output power 100 mW used a light source for treatment was carried out...
A fiber optic displacement sensor (FODS) that uses a probe to detect metal purity based on intensity modulation technique is proposed and demonstrated. He-Ne laser used as the light source three different types of metals which consists nickel brass, cupronickel, copper clad-steel are target samples. It observed voltages increase brightness changes from dark bright, consequently depends amount content in metal. The highest sensitivity 1.0459 for front slope achieved by thus making it useful...
Abstract Commercial scale production of stable titania nanoclusters (TiO 2 NCs) with controlled physicochemical properties remains challenging. Over the years, to meet constant industrial demand different types pure TiO NCs desired size distribution various strategies have been developed. Most existing synthesis protocols are not enviro-friendly and often require chemical precursors. Considering these factors, we used eco-friendly pulse laser ablation in liquid (PLAL) method make five...
Abstract Laser Surface Smoothing (LSS) is a widely used technique for improving the surface quality of materials, particularly in additive manufacturing (AM), where high roughness and porosity are prevalent. Despite benefits LSS, faces challenges due to fluctuation input parameters, such as laser power scanning speed, leading inadequate smoothening. Hence, this study ultilised processing temperature which has been determined via near-infrared spectroscopic method monitoring parameter LSS....
Abstract Two-dimensional (2D) materials have been widely used in optical applications due to their unique properties such as high transparency, strong light-matter interactions, and tuneable electronic characteristics. In this context, transition metal dichalcogenide (TMD), tungsten disulfide (WS 2 ) molybdenum (MoS has the subject of interest direct bandgap monolayers properties. Previous studies were conducted under different parameters conditions, where results not comparable. This...
Abstract A sensitive tapered optical fiber sensor incorporating graphene oxide (GO) and polyvinyl alcohol (PVA) composite film for the rapid measurement of changes in relative humidity was proposed experimentally demonstrated. The sensing principle based on intensity modulation transmitted light induced by refractive index coatings. region obtained tapering a section single-mode (SMF) from its original 125 µm diameter down to 9.03 µm. structure then modified through deposition GO/PVA...
Summary Background/Objective The aim of this study was to evaluate the effects multiple pulses on depth injury caused by CO 2 laser in an vivo rat model. Methods A 10 600‐nm applied skin, with one side dorsal skin being exposed, leaving other as a control. Results All various tested led gradual loss epidermal thickness well dramatic increase thermal damage depth. Collagen coagulation most effective ten laser, while strength irradiated tissue increased influence increased. Conclusion...
Gold nanoparticles were prepared in a carbon quantum dots solution using the laser ablation technique to enhance photoluminescence property of solution. The gold plate was ablated Q-Switched Nd:YAG at 4, 8, 12, and 16 minutes with stable energy. optical properties, functional groups, morphology samples examined UV-visible spectroscopy, Fourier transform transmission electron microscopy, respectively. When time increased, size decreased from 20.69 nm 13.52 plasmonic quality factor...