Volume 6, Issue 1, October 2017

  • Compton Scattering of a Vortex Light Beam

    Mazen Nairat, George Goedecke, David Voelz

    Issue: Volume 6, Issue 1, October 2017
    Pages: 1-4
    Received: 14 May 2017
    Accepted: 1 June 2017
    Published: 17 July 2017
    Abstract: Energy-momentum conservation laws in Compton scattering are analyzed. The conservation of total angular momentum is applied to a general formula that describes the variation of the light angular momentum. The Compton scattering model of a vortex beam is generalized to describe the momentum exchange beyond the well-known photon wave number shift. Th... Show More
  • Temperature Dependent Tuning of Defect Mode inside Photonic Bandgap for Cwdm Applications

    Ranjita Panda, Maitreyi Upadhyay, Suneet Kumar Awasthi

    Issue: Volume 6, Issue 1, October 2017
    Pages: 5-10
    Received: 30 June 2017
    Accepted: 10 July 2017
    Published: 11 August 2017
    Abstract: A theoretical study of temperature dependent tuning of defect mode inside photonic bandgap of one-dimensional photonic crystal with binary defect for optical communication applications based on coarse wavelength division multiplexing (CWDM) is presented. The transmission properties of the proposed structure are investigated through the transfer mat... Show More
  • The Various Speeds of Lights in Inertial Frames of Reference

    Harry H. Mark

    Issue: Volume 6, Issue 1, October 2017
    Pages: 11-16
    Received: 19 August 2017
    Accepted: 14 September 2017
    Published: 23 October 2017
    Abstract: The speed of light in empty space was first measured by Roemer in 1676 who also found it faster on approach to its source and slower on recession. James Bradley in 1728 reported the speed of light incident vertically to be higher on approach and slower on recession. In 1881 and 1887 Albert Michelson showed that the speed of light did not change whe... Show More