American Journal of Optics and Photonics

Volume 8, Issue 3, September 2020

  • Coherent Nonlinear Resonances of Saturated Absorption at Transitions from the Ground 1S0 Atomic State in the Spectroscopy of Unidirectional Waves

    Aleksandr Chernenko, Edward Saprykin

    Issue: Volume 8, Issue 3, September 2020
    Pages: 51-60
    Received: 30 June 2020
    Accepted: 20 July 2020
    Published: 19 August 2020
    Abstract: The shapes of the saturated absorption resonances at transitions from the ground 1S0 atom state in a gas medium in the field of two unidirectional waves are investigated both analytically and numerically. It is shown for the first time that the spectra of nonlinear resonances are formed by processes in the two-and three-level V-schemes resulting fr... Show More
  • Triangular Rogue Waves and Multi- Wave Trains Generation in a Chameleon Electrical Transmission Line

    Bedel Giscard Onana Essama, Salome Ndjakomo Essiane, Frederic Biya – Motto, Mohammed Shabat, Jacques Atangana

    Issue: Volume 8, Issue 3, September 2020
    Pages: 61-73
    Received: 9 August 2020
    Accepted: 26 August 2020
    Published: 23 November 2020
    Abstract: In this work, we present a particular nonlinear transmission line called chameleon nonlinear transmission line. In fact, the chameleon’s behavior is related to the fact that without changing its appearance, the line can exhibit alternatively purely right - or left - handed behavior. This transmission line is different to the composite one. So, the ... Show More