Subwavelength imaging with a multilayer silver film structure.
A Ag/SiO2 multilayer imaging structure is shown to have subwavelength performance. Loss is the major limitation, and selection of low-loss materials and suitable operating wavelengths has a significant impact on performance. The influence of the variables is presented, and vortices are shown to exist.
Webb
K J
KJ
School of Electrical and Computer Engineering, Purdue University, West Lafayette, IN 47907, USA. webb@purdue.edu
Yang
M
M