Now showing items 1-3 of 3

  • Electrically injected photonic-crystal nanocavities 

    Welna, Karl (University of St Andrews, 2011-11-30) - Thesis
    Nano-emitters are the new generation of laser devices. A photonic-crystal cavity, which highly confines light in small volumes, in combination with quantum-dots can enhance the efficiency and lower the threshold of this ...
  • Integrated polymer microprisms for free space optical beam deflecting 

    Reardon, Christopher; Di Falco, Andrea; Welna, Karl; Krauss, Thomas (2009-03-02) - Journal article
    We demonstrate beam deflection and multiple channel communication in free space optical communications using microprisms integrated directly onto an array of vertical cavity surface emitting lasers (VCSELs). The design and ...
  • Nanoimprinted Organic Semiconductor Laser Pumped by a Light-Emitting Diode 

    Tsiminis, Georgios; Wang, Yue; Kanibolotsky, A L; Inigo, A R; Skabara, P J; Samuel, Ifor David William; Turnbull, Graham A. (2013-05-28) - Journal article
    An organic semiconductor laser, simply fabricated by UV-nanoimprint lithography (UV-NIL), that is pumped with a pulsed InGaN LED is demonstrated. Molecular weight optimization of the polymer gain medium on a nanoimprinted ...