Now showing items 1-6 of 6

    • Experimental observation of true left-handed metamaterial 

      Aydın, Koray; Güven, Kaan; Özbay, Ekmel (IEEE, 2005)
      We report a true left-handed (LH) behavior in composite metamaterials. The magnetic resonance of the SRR structure is demonstrated. Plasma frequency of the LH material is shown to be lower than that of the wires.
    • Experimental study of subwavelength focusing by lefthanded metamaterials with a negative refractive index 

      Özbay, Ekmel; Aydin, K. (2007)
      Two dimensional (2D) left-handed metamaterials (LHM) exhibiting negative refraction and subwavelength imaging are studied experimentally. A left-handed transmission band is observed at the frequencies where both dielectric ...
    • The magical world of metamaterials 

      Çağlayan, Hümeyra; Özbay, Ekmel (SPIE, 2009)
      We review experimental and theoretical studies performed on left-handed metamaterials (LHM). The metamaterials exhibit quiet unusual electromagnetic properties such as negative refraction, negative phase velocity, subwavelength ...
    • Negative refraction and focusing by a left-handed material slab in free space 

      Aydın, Koray; Özbay, Ekmel (IEEE, 2006)
      Negative refraction and focusing by a left-handed metamaterial (LHM) slab are experimentally verified. We measured refractive index of slab as -1.86. The flat lens behavior of LHM is demonstrated for two different point ...
    • Negative refraction and subwavelength focusing using left-handed composite metamaterials 

      Özbay, Ekmel; Aydın, Koray (SPIE, 2008-01)
      We review experimental studies performed on left-handed metamaterials (LHM) at microwave frequencies. The metamaterial structure is composed of periodic arrays of split-ring resonators and wire meshes and exhibits a ...
    • Science meets magic: photonic metamaterials 

      Özbay, Ekmel (Society of Photo-Optical Instrumentation Engineers, 2012-05)
      The word "magic" is usually associated with movies, fiction, children stories, etc. but seldom with the natural sciences. Recent advances in metamaterials have changed this notion, in which we can now speak of "almost ...