Advances in Physics Theories and Applications
http://www.iiste.org/Journals/index.php/APTA
The International Institute for Science, Technology and Education (IISTE)en-USAdvances in Physics Theories and Applications2224-719XJournal coverpage
http://www.iiste.org/Journals/index.php/APTA/article/view/40919
Journal coverpageJournal Editor70Ground Magnetic Survey over Lead-Zinc Mineralization in Edor, Cross River State, Nigeria
http://www.iiste.org/Journals/index.php/APTA/article/view/40920
<p>Ground magnetic survey was carried out to investigation Lead-Zinc ore presence in Edor area of Cross River State, Nigeria. Magnetic-intensity profiles were made along seven profile lines over the target area. All the magnetic lows match in position with aeromagnetic lows which have been associated with Pb-Zn mineralisations in the area. It was therefore concluded that the Pb-Zn mineralisation is depicted by magnetic lows.</p> <p><strong> </strong></p>Eze, C. LAdaora, G. Atuchukwu70Non-classical Analysis of Output Superposed Laser and Signal Twin Light Beams
http://www.iiste.org/Journals/index.php/APTA/article/view/40921
<p>In this paper, we have shown that the mathematical expressions for a new integrated quantum optical system which encompass laser light and twin light beams. Our finding shows that the quadrature variance and quadrature squeezing for the superposed light beam is the sum of the quadrature variance and the average of the quadrature squeezing of the component systems respectively. We also found that the presence of the twin light beam improves the non-classicality of the system.</p> <p><strong>Keywords</strong><strong>：</strong><strong> </strong>Laser Light, Quadrature Fluctuation, Squeezing, Twin Light Beams</p> <p> </p>Sitotaw Eshete70Dynamics of Electromagnetically Induced Transparency in Orthogonal States
http://www.iiste.org/Journals/index.php/APTA/article/view/40922
<p>According to our work, we assert that the dynamics of electromagnetically induced transparency in lambda type atomic system by taking the basics in line with the quantum mechanical aspects. We wonder that incorporating the condition for electromagnetically induced transparency to happen is a meaningful arm to generating a conclusion for a considerable quantum optical system; lambda type atomic system. In this work, mainly quantum interference of light generated from an atomic system has been studied significantly. Accordingly, the mathematical result shows that the quantum interference is due to spontaneous decay rate of the atom from the upper energy state to two ground energy states and sufficiently affects the transparency of the medium. To have such transparency we must have initially the atom in the upper physical state.</p> <p><strong>Keywords: </strong>Electromagnetically induced transparency, Orthogonal states, Interference, Light, Lambda system.</p> <p> </p>Sitotaw Eshete70Effect of Thermal Radiation on MHD Casson Fluid Flow over a Stretched Surface of Variable Thickness
http://www.iiste.org/Journals/index.php/APTA/article/view/40923
<p class="TTPAbstract">This study deals with the free convective heat transfer in a 2D magneto hydrodynamic flow of Casson fluid over a non-uniform thickness stretching sheet in the presence of thermal radiation and non-uniform heat source/sink effects. The governing equations of the flow and heat transfer are transformed as the asset of nonlinear ODEs and solved numerically using bvp4c Mat lab package. The effect of pertinent parameters, namely, magnetic field parameter, Casson parameter, thermal radiation parameter, non-uniform heat source/sink parameters on the flow and heat transfer is investigated with the assistance of graphs. Numerical results are computed for the friction factor and reduced Nusselt number. It is observed that the thermal radiation has tendency to enhance the temperature field of Casson fluid.</p> <p class="TTPSectionHeading">Keywords: MHD, Casson fluid, Thermal radiation, Slendering sheet, non-Uniform heat source/sink.</p>M. S. Basavaraj70Studying of Thickness Effects on the Optical and Structural Properties of ZnO/Ag/ZnO Multilayer Thin Films by Using Surface Plasmon Resonance
http://www.iiste.org/Journals/index.php/APTA/article/view/40924
<p>In this paper, the Effect of Surface Plasmon's on Optical and structure Properties of Multilayer ZnO/Ag/ZnO thin film have been investigated. These properties could be tuned using the plasmonic properties of the two layers of ZnO. The two thin layers of ZnO with thicknesses varying from 30 nm to 40 nm and the intermediate Ag layer of 6 nm thickness have been deposited using radio frequency magnetron sputtering and Vacuum Deposition technique on glass substrate respectively. multilayered ZnO/Ag/ZnO thin films with <em>c</em>-axis-oriented wurtzite structure is obtained at a growth temperature 300 <em>◦</em>C. X-ray diffraction shows that the full width at half maximum<em> θ</em>-2θ of (002) ZnO/Ag/ZnO is located at approximately 34.28<em><sup>◦</sup></em>. UV-VIS Spectrometer has been used to measure the optical transparency. We also studied the influence of ZnO thickness on optical properties of the ZnO/Ag/ZnO composite and the effect mechanism by surface plasmon.</p> <p><strong>Keywords:</strong> Surface plasmon resonance, Dielectric/Metal/Dieletric thin films, Magnetron sputtering, Vacuum Deposition</p>Mufid DiabOmar Alabbosh70