Laser Science and Technology
Performance Comparison of Plasmonic Sensors via Ion Reduction and KOH Methods

Ruqaya Abdulkareem Shlaga; Alwan M. Alwan; Mohammed S. Mohammed

Volume 5, Issue 2 , June 2025, , Page 24-33

https://doi.org/10.53293/jasn.2025.7488.1317

Abstract
  In this work, several types of plasmonic sensors were prepared by different methods (ion reduction method and wet-chemical KOH route) to detect the ultralow anti-CIPRO concentration using AgNPs/PSi SERS-active substrate with AgNPs concentration. The process was optimized to be very effective in detecting ...  Read More ...

Laser Science and Technology
Laser-Induced Breakdown Spectroscopy: Principles and Advanced Applications

Rajaa N. Ketan; Muayyed J. Zoory; Haidar J. Mohamad

Volume 5, Issue 1 , March 2025, , Page 25-32

https://doi.org/10.53293/jasn.2024.7433.1295

Abstract
  A spectroscopic technique such as laser-induced breakdown spectroscopy (LIBS) is used to analyze various materials, including solids, liquids and gases. The advantages of this technique include rapid analysis, no prior sample preparation, low cost and the ability to generate qualitative and quantitative ...  Read More ...

Laser Science and Technology
Surface-Enhanced Raman Scattering Sensors: A Comparative Study of Copper and Palladium Nanostructures for Nitrite Detection

Intisar A. Naseef; Alwan M. Alwan; Mehdi Q. Zayer; Layla A. Wali

Volume 4, Issue 3 , September 2024, , Page 18-32

https://doi.org/10.53293/jasn.2024.7357.1290

Abstract
  In scientific research, the search for cost-efficient and scalable functional materials for substantial and practical applications is necessary. Therefore, metallic materials at the nanoscale represent a rapidly growing area of research, especially as plasmonic materials in the field of surface-enhanced ...  Read More ...

Laser Science and Technology
Synthesise of Iron Oxide Nanoparticles IONPs by Laser Method as an Antibacterial and Hemocompatibility Agent

Asraa B. Radhi; Khawla S. Khashan; Ghassan M. Sulaiman; Hamdoon A. Mohammed

Volume 4, Issue 3 , September 2024, , Page 33-41

https://doi.org/10.53293/jasn.2024.7439.1298

Abstract
  In this work, room temperature laser ablation with an iron target in water was used to create iron oxide nanoparticles (IONPs) with a different number of pulses (100, 200, 300, 400 and 500) at a constant energy of 200 mJ. The colloidal solutions of the IONPs were studied and the effects of the number ...  Read More ...

Laser Science and Technology
Advanced Photovoltaic Applications of CdO Films Prepared by Pulsed Laser Ablation on Porous Silicon

Raghad R. Mahdi; Marwa Kasim Abood

Volume 4, Issue 3 , September 2024, , Page 53-64

https://doi.org/10.53293/jasn.2024.7353.1286

Abstract
  In this study, cadmium oxide (CdO) was prepared by pulsed laser ablation in liquid (PLAL). The morphological structure and optical properties of the prepared CdO were determined by various analytical techniques, including SEM, AFM and XRD. The SEM images obtained showed that the prepared film exhibited ...  Read More ...

Laser Science and Technology
Synthesis of High-Performance Antibacterial Magnesium Oxide Nanostructures through Laser Ablation

Sara Fadhil Abbas; Adawiya J. Haider; Sharafaldin Al-Musawi; Bakr Ahmed Taha

Volume 4, Issue 1 , March 2024, , Page 53-65

https://doi.org/10.53293/jasn.2024.7213.1262

Abstract
  In this study, we synthesized magnesium oxide (MgO) nano flakes (NFs) through pulsed laser ablation of magnesium ribbons, investigating their potent antibacterial properties for potential biomedical applications. Thorough characterization utilizing advanced analytical techniques verified the phase purity ...  Read More ...

Laser Science and Technology
Stimulated Raman Scattering of Q-Gaussian Laser Beam in an Unmagnetized Plasma

Ahmed S. Ahmed; Hyder A. Salih; Khaleel I. Hassoon; Sukhdeep Kaur

Volume 3, Issue 4 , December 2023, , Page 10-19

https://doi.org/10.53293/jasn.2023.7035.1230

Abstract
  This study describes the relativistic q-Gaussian laser beam's stimulated Raman scattering (SRS) in an unmagnetized plasma. Moreover, the influence of the pump laser's relativistic self-focusing on the SRS process has been investigated. Using variational theory, we derived analytical solutions to the ...  Read More ...

Laser Science and Technology
Effect of Laser Energies on the Performance of Exfoliation and Fragmentation for Hexagonal Boron Nitride by Laser

Mayyadah H. Mohsin; Khawla S. Khashan; Ghassan M. Sulaiman; Khalil A. A. Khalil

Volume 3, Issue 3 , September 2023, , Page 20-36

https://doi.org/10.53293/jasn.2023.6955.1214

Abstract
  A technique for exfoliating Boron nitride (BN) nanosheets was devised, which was then followed by a laser ablation-fragmentation process to produce lamellar hexagonal Boron nitride nanostructures (h-BNNs). The physicochemical properties of the nanoparticles were analysed to investigate the effect of ...  Read More ...

Laser Science and Technology
Assessing the Toxicity of Aluminum Oxide Nanoparticles (Al2O3 NPs) Prepared by Laser Ablation Technique on Blood Components

Tuqa Sabah; kareem H. Jawad; Nebras Essam

Volume 3, Issue 1 , March 2023, , Page 8-17

https://doi.org/10.53293/jasn.2022.4746.1142

Abstract
  Along with its uses in a wide range of sectors, NP toxicity research was one of the fastest-growing areas of research, so the growing commercial applications brought aluminum oxide nanoparticles under the purview of toxicologists. This study shows the toxicity of Aluminum oxide Nanoparticles on blood ...  Read More ...

Laser Science and Technology
Room Temperature 2-Fold Morphology Porous Silicon Impedance Matching Pesticide Sensor

Rasha B. Rashid; Alwan M. Alwan; Mohammed S. Mohammed

Volume 3, Issue 1 , March 2023, , Page 51-64

https://doi.org/10.53293/jasn.2022.4841.1153

Abstract
  In this work, an investigation was conducted to study the effect of electrodes’ configuration of the double morphology macPSi on the performance of electrically matched impedance pesticides sensors. The purpose was to develop an efficient electrical sensor for the quantitative detection process ...  Read More ...

Laser Science and Technology
Fabrication of Porous Silicon as a Gas Sensor: The Role of Porous Silicon Surface Morphology

Ahmed Z. Abdullah; Adawiya J. Haider; Allaa A. Jabbaar

Volume 2, Issue 4 , December 2022, , Page 35-42

https://doi.org/10.53293/jasn.2022.4661.1134

Abstract
  Manufacture of an environmental polluting gas sensor with improved properties by controlling the preparation conditions of the photo-electrochemical etching technique (PECE). The amount of porosity, the diameter of the pores, and the thickness of the prepared layer of porous silicon (Psi) can be controlled ...  Read More ...

Laser Science and Technology
Spectroscopic and Structural Analysis of Aluminum Bulk and Nanoparticles: A Comparative Study

Hajir M. Fadhil; Hyder A. Salih; Khaleel I. Hassoon

Volume 2, Issue 3 , September 2022, , Page 85-94

https://doi.org/10.53293/jasn.2022.4365.1104

Abstract
  In the present work, Laser Induced Breakdown Spectroscopy (LIBS) has been utilized to investigate two forms of aluminum samples, namely Al in the form of the nanoparticles (NPs) and a bulk (pellet). The Al target was irradiated by pulsed Nd-YAG laser with wavelength 1064 nm to produce plasma. The plasm ...  Read More ...

Laser Science and Technology
Study of Some Properties of PbI2 Deposited on Porous Silicon Using Thermal Evaporation Technique for Many Applications

Suha G. Ali; Mohammed S. Mohammed; Fatima I. Sultan

Volume 2, Issue 3 , September 2022, , Page 157-165

https://doi.org/10.53293/jasn.2022.4563.1126

Abstract
  The present work is a study of some properties of PbI2 deposited on porous silicon (n-PSi) by using the thermal evaporation technique. X-ray diffraction, scanning electron microscopy, UV–Vis spectrophotometer, and FTIR analysis were used to characterize the structural, optical, and morphological ...  Read More ...

Laser Science and Technology
Study of the Vacuum Pressure Sensing from the Electrical Resistance Response of Porous Silicon Fabricated via Photo-Electrochemical Technique

Noor S. Dawood; Mehdi Q. Zayer; Muslim F. Jawad

Volume 2, Issue 1 , March 2022, , Page 28-36

https://doi.org/10.53293/jasn.2021.3763.1041

Abstract
  The manufacturing of vacuum sensors is critical to several vacuum-based applications. Porous silicon (PSi) was chosen as the vacuum sensor due to the possibility of moving air particles settled inside the pores while being put in the vacuum. The characteristics of porous silicon sensing to the evacuation ...  Read More ...

Laser Science and Technology
Developing Strategy for a Successful Antioxidant, Anticancer Activity via an Improved Method Prepared to Porous Silicon Nanoparticles

Kareem H. Jawad; Butheina Hasson

Volume 1, Issue 4 , December 2021, , Page 1-11

https://doi.org/10.53293/jasn.2021.3890.1054

Abstract
  Porous silicon nanoparticles, or PSNPs, are one of the most common NPS with distinct characteristics. PSNPs were created using an enhanced approach known as the electrochemical etching process. The nanoparticles were treated with a post-laser to obtain the nanoparticles, which were subsequently analyzed ...  Read More ...

Laser Science and Technology
Perspectives of Photonics Technology to Diagnosis COVID–19 Viruses: A Short Review

Bakr A. Taha

Volume 1, Issue 1 , March 2021, , Page 1-6

https://doi.org/10.53293/jasn.2021.11016

Abstract
  The COVID-19 disease outbreak has emphasized the critical need for more sensitive analytical technology. Photonic technology focuses on studying light interaction analysis with the molecules to enhance diagnostic tools' accuracy. Due to the distinct spectral signatures, lasers have shown effectiveness ...  Read More ...