Differential Ghost Imaging

被引：762

作者：

Ferri, F. ^{[1
]}

Magatti, D. ^{[1
]}

Lugiato, L. A. ^{[1
]}

Gatti, A. ^{[1
]}

机构：

[1] Univ Insubria, Dipartimento Matemat & Fis, CNR, INFM,CNISM, I-22100 Como, Italy

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 104卷 / 25期

关键词：

LIGHT;

D O I：

10.1103/PhysRevLett.104.253603

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We present a new technique, differential ghost imaging (DGI), which dramatically enhances the signal-to-noise ratio (SNR) of imaging methods based on spatially correlated beams. DGI can measure the transmission function of an object in absolute units, with a SNR that can be orders of magnitude higher than the one achievable with the conventional ghost imaging (GI) analysis. This feature allows for the first time, to our knowledge, the imaging of weakly absorbing objects, which represents a breakthrough for GI applications. Theoretical analysis and experimental and numerical data assessing the performances of the technique are presented.

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页数：4

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