Title :
Near-field focusing plates: Theory and experiment
Author :
Grbic, Anthony ; Jiang, Lei ; Merlin, Roberto
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of Michigan, Ann Arbor, MI
Abstract :
Using a modulated grating-like surface, referred to as a near-field plate, we experimentally demonstrate focusing of microwave radiation in a pattern that mimics that of a negative-index slab. The near-field platepsilas resolution, of lambda/20, is well beyond the diffraction limit.
Keywords :
lenses; microwave devices; microwave radiation focusing; modulated grating-like surface; near-field focusing plates; near-field plate resolution; negative-index slab; Electromagnetic diffraction; Electromagnetic fields; Electromagnetic scattering; Energy resolution; Gratings; Lenses; Metamaterials; Optical diffraction; Optical surface waves; Slabs; (260.0260); (350.3618) Left-handed materials; (350.4238) Nanophotonics and photonic crystals;
Conference_Titel :
Lasers and Electro-Optics, 2008 and 2008 Conference on Quantum Electronics and Laser Science. CLEO/QELS 2008. Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-55752-859-9
