Full text loading...
A schematic of optical imaging by a metallic slab lens with nanoslits.
(Color online) (a) Dependence of phase retardation on the slit width. Red and blue tags represent the contributions for phase retardation from the real part of propagation constant and multiple reflections. The wavelength of incident light is . (b) Transmittance of optical field ( wavelength) through a nanoslit vs the slit depth ranging from . Slit widths are 10, 20, 40, and .
(Color online) (a) Distribution of silt widths and positions on the designed metallic slab lens. (b) Comparison between the designed and simulated optical phase retardations at slit positions.
(Color online) Calculated steady magnetic field intensity of the simulation results using FDTD method. The source is localized at and . The metallic slab lens ranges from . The radiated light from the source is TM polarized with a wavelength of . The curve at the right side represents the cross section of image plane at .
Article metrics loading...