American Journal of Modern Physics

Archive

Volume 7, Issue 5, September 2018

  • Effect of Pulse Energy on the Optical Properties of ZnS Thin Films Prepared Using Pulse Laser Technique

    Khalid Mohammed Haroun, Mohammed Nouman Mohammed Abdalla, Sohad Saad Elwakeel, Yousif Hassan Alsheikh Abd Alraheim

    Issue: Volume 7, Issue 5, September 2018
    Pages: 173-179
    Received: 6 October 2018
    Accepted: 22 October 2018
    Published: 19 November 2018
    DOI: 10.11648/j.ajmp.20180705.11
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    Abstract: In these work four samples of ZnS thin films deposited on glass substrate using pulse laser deposition method with different pulse energies, the effect of the laser pulse energy on the optical properties of the four ZnS thin films fabricated was studied. Q-Switched Nd: YAG laser with the fundamental wavelength 1064 nm, laser Pulse energies of (125,... Show More
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  • Quantum Zeno Effect and Atomic Population Inversion

    Jiu-Ming Li, Bo-Ying Zhang, Xue-Qun Yan

    Issue: Volume 7, Issue 5, September 2018
    Pages: 180-184
    Received: 1 October 2018
    Accepted: 25 October 2018
    Published: 26 November 2018
    DOI: 10.11648/j.ajmp.20180705.12
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    Abstract: Quantum Zeno effect can be applied to quantum information processing，and can reveal the nature of quantum measurement. In addition, it has also many potential applications. This suggests that studying the quantum Zeno effect has great theoretical and experimental significance. In this work, the system of a two-level atom interacting with a single m... Show More
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  • Kinetic Modelling of Atmospheric Pressure Nitrogen Plasma

    Md. Ziaur Rahman, Mohammed Mynuddin

    Issue: Volume 7, Issue 5, September 2018
    Pages: 185-193
    Received: 10 November 2016
    Accepted: 24 March 2017
    Published: 5 December 2018
    DOI: 10.11648/j.ajmp.20180705.13
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    Abstract: This model describes the production and destruction mechanism of nitrogen plasma at atmospheric pressure. We have studied the mechanisms of chemical dissociation, ionization, ion conversion and recombination in nitrogen plasmas, with kinetic temperature (Tg) of the free electrons being higher than the kinetic temperature (Tg) of heavy species. Ther... Show More
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