Monday, April 23, 2012

1204.4638 (Hai-Bo Wang et al.)

Two-Photon Airy Disk    [PDF]

Hai-Bo Wang, Xin-Bing Song, De-Qin Xu, Jun Xiong, Xiangdong Zhang, Kaige Wang
We report an experimental observation of quantum Airy disk diffraction pattern using an entangled two-photon source. In contrast to the previous quantum lithography experiments where the subwavelength diffraction patterns were observed in the far field limit, we perform the Fraunhofer diffraction experiment with a convex lens. The experimental result shows that the two-photon Airy disk is provided with the super-resolution spot, which surpasses the classical diffraction limit. In particular, the spot size can be well controlled by the focal length, which adapted to optical super-focusing. Our experiment can promote potential application of quantum lithography.
View original: http://arxiv.org/abs/1204.4638

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