Open AccessSuper-resolution focusing of time reversal electromagnetic waves in metal wire array medium
Author(s) -
Hongcheng Zhou,
BingZhong Wang,
Shuai Ding,
Ou Hai-Yan
Publication year - 2013
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.62.114101
Subject(s) - signal (programming language) , optics , channel (broadcasting) , near and far field , electromagnetic radiation , arrival time , image resolution , resolution (logic) , acoustics , physics , computer science , telecommunications , artificial intelligence , transport engineering , programming language , engineering
With an existing metal wire array structure, this paper verifies the temporal and spatial focusing properties of the time reversal techniques, and confirms the super-resolution focusing properties of the time reversal electromagnetic waves. Since the metal wire array can provide an evanescent-wave channel, by changing the signal incentives to the time reversal mirror (TRM), this paper achieves some satisfactory simulation results of subwavelength off-site imaging. The analysis and simulation results indicate that with time reversal technique, we can use traditional materials and equipment to achieve super-resolution confocal imaging in the far field, and extract and analyze the source signal at different positions.