Quantum interference fringes beating the diffraction limit

被引：43

作者：

Kawabe, Yoshio ^{[1
]}

Fujiwara, Hideki ^{[1
]}

Okamoto, Ryo ^{[1
]}

Sasaki, Keiji ^{[1
]}

Takeuchi, Shigeki ^{[1
]}

机构：

[1] Hokkaido Univ, Res Inst Electron Sci, Kita Ku, Sapporo, Hokkaido, Japan

来源：

OPTICS EXPRESS | 2007年 / 15卷 / 21期

关键词：

D O I：

10.1364/OE.15.014244

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Spatially formed two-photon interference fringes with fringe periods smaller than the diffraction limit are demonstrated. In the experiment, a fringe formed by two-photon NOON states with wavelength lambda= 702.2 nm is observed using a specially developed near-field scanning optical microscope probe and two-photon detection setup. The observed fringe period of 328.2 nm is well below the diffraction limit (351 nm = lambda/2). Another experiment with a path-length difference larger than the coherent length of photons confirms that the observed fringe is due to two-photon interference. (c) 2007 Optical Society of America.

引用

页码：14244 / 14250

页数：7

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