Exploració per autor "Gadonas, Roaldas"

Ara es mostren els items 1-2 de 2

    • Spatial Filters on Demand Based on Aperiodic Photonic Crystals 

      Gailevicius, Darius; Purlys, Vytautas; Peckus, Martynas; Gadonas, Roaldas; Staliunas, Kestutis (2017-08-01)
      Article
      Accés obert
      Photonic Crystal spatial filters, apart from stand-alone spatial filtering function, can also suppress multi-transverse-mode operation in laser resonators. Here it is shown that such photonic crystals can be designed by ...

    • Super-collimation by axisymmetric photonic crystals 

      Purlys, Vytautas; Maigyte, Lina; Gailevicius, Darius; Peckus, Martynas; Gadonas, Roaldas; Staliunas, Kestutis (2014-06-02)
      Article
      Accés obert
      We propose and experimentally show the mechanism of beam super-collimation by axisymmetric photonic crystals, specifically by periodic (in propagation direction) structure of layers of concentric rings. The physical mechanism ...