E. Shamonina et al., Imaging, compression and Poynting vector streamlines for negative permittivity materials, ELECTR LETT, 37(20), 2001, pp. 1243-1244
The quality of imaging subwavelength features with the aid of multilayers c
ontaining negative permittivity materials is examined. Examples for nearly
perfect imaging are given and limitations discussed. Spatial compression (i
mage narrower than object) is shown to be possible and a qualitative physic
al picture based on the Poynting vector is presented.