5 research outputs found
Experimental study of the sub-wavelength imaging by a wire medium slab
An experimental investigation of sub-wavelength imaging by a wire medium slab
is performed. A complex-shaped near field source is used in order to test
imaging performance of the device. It is demonstrated that the ultimate
bandwidth of operation of the constructed imaging device is 4.5% that coincides
with theoretical predictions [Phys. Rev. E 73, 056607 (2006)]. Within this band
the wire medium slab is capable of transmitting images with \lambda/15
resolution irrespectively of the shape and complexity of the source. Actual
bandwidth of operation for particular near-field sources can be larger than the
ultimate value but it strongly depends on the configuration of the source.Comment: 3 pages, 3 figures, submitted to AP