Sub-Rayleigh Imaging via N-Photon Detection

被引：48

作者：

Guerrieri, Fabrizio ^{[1
,2
]}

Maccone, Lorenzo ^{[2
]}

Wong, Franco N. C. ^{[2
]}

Shapiro, Jeffrey H. ^{[2
]}

Tisa, Simone ^{[3
]}

Zappa, Franco ^{[1
]}

机构：

[1] Politecn Milan, Dipartimento Elettron & Informaz, I-20133 Milan, Italy

[2] MIT, Elect Res Lab, Cambridge, MA 02139 USA

[3] Micro Photon Devices, I-39100 Bolzano, Italy

来源：

PHYSICAL REVIEW LETTERS | 2010年 / 105卷 / 16期

关键词：

OPTICAL LITHOGRAPHY; 2-PHOTON EXPOSURE; QUANTUM; RESOLUTION; LIGHT; LIMIT;

D O I：

10.1103/PhysRevLett.105.163602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Rayleigh diffraction bound sets the minimum separation for two point objects to be distinguishable in a conventional imaging system. We demonstrate sub-Rayleigh resolution by scanning a focused beam-in an arbitrary, object-covering pattern that is unknown to the imager-and using N-photon photodetection implemented with a single-photon avalanche detector array. Experiments show resolution improvement by a factor similar to(N - (N) over bar (max))(1/2) beyond the Rayleigh bound, where (N) over bar (max) is the maximum average detected photon number in the image, in good agreement with theory.

引用

页数：4

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