Browsing by Author "FOCA, Eugen"

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  • Efficient Focusing with an Ultra-Low Effective-Index Lens Based on Photonic Crystals 
    FOCA, Eugen; FÖLL, Helmut; DASCHNER, Frank; SERGENTU, Vladimir V.; CARSTENSEN, Jürgen; KNÖCHEL, Reinhard; TIGINYANU, Ion M. (Cambridge University Press, 2005)
    This work focuses on photonic crystals (PC) that can be ascribed an effective index of refraction > 1 or even > 0. We investigate the possibility to design optical elements (in this case a lens) based on this type of PC. ...
  • Microwave components based on 2d photonic crystals with unusual index of refraction 
    FOCA, Eugen; FÖLL, Helmut; SERGENTU, Vladimir V.; TIGINYANU, Ion M.; DASCHNER, Frank; KNÖCHEL, Reinhard (Technical University of Moldova, 2005)
    This work reports on measurements of microwave components based on Photonic Crystals (PC) with unusual index of refraction, i.e. neff < 1. Particularly lenses based on different PC structures are investigated. All measurements ...

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