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      https://www.ias.ac.in/article/fulltext/pram/091/06/0074

    • Keywords

       

      Double quantum dot; Y-structure; lasing without inversion

    • Abstract

       

      This work discusses lasing without inversion in Y-scheme in a double quantum dot nanostructure. This new type of lasing, which results from the quantum interference of spontaneous emission components, was not discussed earlier in quantum dot nanostructures. It is found that both pumping and cycling fields control the laser emission. The decrease of the cycling detuning increases the possibility of lasing. Probe detuning controls the width of the absorption bath (electromagnetic-induced transparency window) of this structure. This phenomenon canhave an interesting application for developing sources of coherent radiation in a region of electromagnetic spectrum where the implementation of traditional laser schemes is difficult.

    • Author Affiliations

       

      B AL-NASHY1 M ABDULLAH2 ALI GEHAD AL-SHATRAVI3 AMIN HABBEB AL-KHURSAN2

      1. Science College, Misan University, Amarah, Misan, Iraq
      2. Nassiriya Nanotechnology Research Laboratory (NNRL), Science College, Thi-Qar University, Nassiriya, Dhi Qar, Iraq
      3. Physics Department, Science College, Thi-Qar University, Nassiriya, Dhi Qar, Iraq
    • Dates

       
  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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