A power analysis of the lossy negative refractive index or left-handed slab lens is described. The presence of vortices in the image plane is revealed with small loss or gain, and these are attributed to the influence of field growth in the evanescent spectrum.
© 2005 Optical Society of America
Ming-Chuan Yang and Kevin J. Webb, "Poynting vector analysis of a superlens," Opt. Lett. 30, 2382-2384 (2005)