Super-resolution in high-contrast media

被引：31

作者：

Ammari, Habib ^{[1
]}

Zhang, Hai ^{[1
]}

机构：

[1] Ecole Normale Super, Dept Math & Applicat, F-75005 Paris, France

来源：

PROCEEDINGS OF THE ROYAL SOCIETY A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES | 2015年 / 471卷 / 2178期

关键词：

super-resolution; diffraction limit; resonant medium; high contrast; TIME-REVERSAL;

D O I：

10.1098/rspa.2014.0946

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A mathematical theory is developed to explain the super-resolution and super-focusing in high-contrast media. The approach is based on the resonance expansion of the Green function associated with the medium. It is shown that the super-resolution is due to sub-wavelength resonant modes excited in the medium which can propagate into the far-field.

引用

页数：11

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