The magical world of metamaterials
Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS 2009
1 - 2
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In recent years, there has been a burgeoning interest in rapidly growing field of metamaterials due to their unprecedented properties unattainable from ordinary materials. Veselago pointed out that a material exhibiting negative values of dielectric permittivity (ε) and magnetic permeability (μ) would have a negative refractive index . Generally speaking, the dielectric permittivity (ε) and the magnetic permeability (μ) are both positive for natural materials. In fact it is possible to obtain negative values for ε and μ by utilizing proper designs of metamaterials. Left-handed electromagnetism and negative refraction are achievable with artificially structured metamaterials exhibiting negative values of permittivity and permeability simultaneously at a certain frequency region. The first steps to realize these novel type of materials were taken by Smith et al., where they were able to observe a left-handed propagation band at frequencies where both dielectric permittivity and magnetic permeability of the composite metamaterial are negative . Soon after, left-handed metamaterials with an effective negative index of refraction are successfully demonstrated by various groups .
Left handed metamaterial
Negative index of refraction
Negative refractive index
Fluorine containing polymers
Published Version (Please cite this version)http://dx.doi.org/10.1109/LEOS.2009.5343435
Showing items related by title, author, creator and subject.
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 ...
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 ...
Development of left-handed composite materials and negative refracting photonic crystals with subwavelength focusing Özbay, Ekmel (SPIE, 2005)We review the studies conducted in our group concerning electromagnetic properties of metamaterials and photonic crystals with negative effective index of refraction. In particular, we demonstate the true left handed ...