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Iraqi Journal of Applied Physics

المجلة العراقية للفيزياء التطبيقية

ISSN: 18132065 23091673
Publisher: iraqi society for alternative and renewable energy sources and techniques
Faculty:
Language: English

This journal is Open Access

About

The Iraqi Journal of Applied Physics (IJAP) is a peer reviewed journal of high quality devoted to the publication of original research papers from applied physics and their broad range of applications. IJAP publishes quality original research papers, comprehensive review articles, survey articles, book reviews, dissertation abstracts in physics and its applications in the broadest sense. It is intended that the journal may act as an interdisciplinary forum for Physics and its applications. Innovative applications and material that brings together diverse areas of Physics are particularly welcome. Review articles in selected areas are published from time to time. It aims to disseminate knowledge; provide a learned reference in the field; and establish channels of communication between academic and research experts, policy makers and executives in industry, commerce and investment institutions. IJAP is a quarterly specialized periodical dedicated to publishing original papers, letters and reviews in: Applied & Nonlinear Optics, Applied Mechanics & Thermodynamics, Digital & Optical Communications, Electronic Materials & Devices, Laser Physics & Applications, Plasma Physics & Applications, Quantum Physics & Spectroscopy, Semiconductors & Optoelectronics, Solid State Physics & Applications, Alternative and Renewable Energy, Computers Networks and Applications.

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Contact info

P. O. Box 55259,
Baghdad 12001,
Iraq
Website: www.iraqiphysicsjournal.com
Email: admin@iraqiphysicsjournal.com
Email: editor_ijap@yahoo.co.uk

Table of content: 2017 volume:13 issue:2

Article
Iraqi Journal of Applied Physics
المجلة العراقية للفيزياء التطبيقية

Authors: Editorial Board
Pages: 1-1
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Abstract

The Iraqi Journal of Applied Physics (IJAP) is a peer reviewed journal of high quality devoted to the publication of original research papers from applied physics and their broad range of applications. IJAP publishes quality original research papers, comprehensive review articles, survey articles, book reviews, dissertation abstracts in physics and its applications in the broadest sense. It is intended that the journal may act as an interdisciplinary forum for Physics and its applications. Innovative applications and material that brings together diverse areas of Physics are particularly welcome. Review articles in selected areas are published from time to time. It aims to disseminate knowledge; provide a learned reference in the field; and establish channels of communication between academic and research experts, policy makers and executives in industry, commerce and investment institutions. IJAP is a quarterly specialized periodical dedicated to publishing original papers, letters and reviews in: Applied & Nonlinear Optics, Applied Mechanics & Thermodynamics, Digital & Optical Communications, Electronic Materials & Devices, Laser Physics & Applications, Plasma Physics & Applications, Quantum Physics & Spectroscopy, Semiconductors & Optoelectronics, Solid State Physics & Applications, Alternative and Renewable Energy, and Computers and Networks.


Article
Instructions for Authors
تعليمات للمؤلفين

Authors: Editorial Board
Pages: 2-2
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Abstract

The Iraqi Journal of Applied Physics (IJAP) is a peer reviewed journal of high quality devoted to the publication of original research papers from applied physics and their broad range of applications. IJAP publishes quality original research papers, comprehensive review articles, survey articles, book reviews, dissertation abstracts in physics and its applications in the broadest sense. It is intended that the journal may act as an interdisciplinary forum for Physics and its applications. Innovative applications and material that brings together diverse areas of Physics are particularly welcome. Review articles in selected areas are published from time to time. It aims to disseminate knowledge; provide a learned reference in the field; and establish channels of communication between academic and research experts, policy makers and executives in industry, commerce and investment institutions. IJAP is a quarterly specialized periodical dedicated to publishing original papers, letters and reviews in: Applied & Nonlinear Optics, Applied Mechanics & Thermodynamics, Digital & Optical Communications, Electronic Materials & Devices, Laser Physics & Applications, Plasma Physics & Applications, Quantum Physics & Spectroscopy, Semiconductors & Optoelectronics, Solid State Physics & Applications, Alternative and Renewable Energy, and Computers and Networks.


Article
Structural Properties of Nickel Oxide Nanostructures Prepared by Closed-Field Unbalanced Dual Magnetron Sputtering Technique

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Abstract

In this work, nickel oxide nanostructures were prepared by a closed-field unbalanced dual magnetron plasma sputtering technique. The structural characterizations performed on the prepared samples showed that they were polycrystalline and the optimization of preparation conditions, only two crystal planes; (111) and (012), were observed in the final product. The surface roughness of the nanostructures can be varied by controlling the inter-electrode distance. Minimum particle size of 25nm was determined for the samples prepared at inter-electrode distance of 6cm.


Article
Nanostructured Copper Oxide Thin Films Prepared by DC Reactive Magnetron Sputtering

Authors: Mohammed A.K. Ahmed
Pages: 11-14
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Abstract

In this work, nanostructured copper oxide thin films were prepared by a dc reactive magnetron sputtering system. The structural and optical characterizations carried out on the prepared samples showed that the deposited CuO films were crystalline with a monoclinic crystal structure. The UV-visible spectra showed wide and high absorption spectral ranges that promote this material as an absorbing material for solar energy. Subsequently, the FTIR data showed the molecular structure of CuO with good agreement to the reference data.


Article
Thermal Management of Vertical External Cavity Surface Emitting Laser Grown on GaAs Substrate

Authors: G. Balluo
Pages: 15-18
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Abstract

In a VECSELs, it seems that most of the heat comes from the pumping mechanism which is the external laser that is exciting the active medium. The pump photons have higher energy than the emitted photons and thus the energy difference is dissipated as heat in the active medium. As the temperature increases in the active medium the excited carriers star escaping the quantum wells until the laser gain is depleted and the power output decreases. Thermal management is crucial for VECSEL power performance and it is usually addressed by using heat spreader plates and heat sinks as will be explained next.


Article
Stress Management and Interfacial Strength of Gallium Nitride Layer Grown on Diamond Substrate

Authors: A.R. Sing
Pages: 19-22
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Abstract

In this work, the stress management and interfacial strength of gallium nitride layer grown on diamond substrate, as well as homogeneous interfacial thermal properties across the wafer, have been achieved. These results on such material systems are highly important for reliable high-power electronics based on this material system, such as high electron mobility transistors.


Article
Using Substrate Removal Technique for GaAs-Based VECSEL Optimization

Authors: C.L. Yang
Pages: 23-26
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Abstract

A combination of two types of etching mechanisms: physical etching which relies on physical interaction of particles that erode the surface, and wet/dry etching that relies on chemical reactions to erode the surface, is used to remove substrates with thickness between 300 and 500µm. First, the substrate is mechanically thin down to about 100µm and then wet etching or dry etching is applied. The substrate removal of GaAs was successfully achieved as verified in the x-ray diffraction etch analysis.

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