Negative refraction of left-handed behavior in porous alumina with infiltrated silver at an optical wavelength

摘要

Porous alumina with infiltrated silver is suggested to achieve a negative refraction of left-handed behavior at an optical wavelength. Numerical simulations of subwavelength focusing by a slab lens are performed for both H and E polarizations. Beam refraction by a wedge is also simulated to verify the left-handed behavior.