Schmid K, Becker H, Dultz W, Martienssen W, Kempe M, Schmitzer H
Physikalisches Institut, J. W. Goethe Universität, 60054 Frankfurt/Main, Germany.
Opt Lett. 2007 Aug 1;32(15):2257-9. doi: 10.1364/ol.32.002257.
We have measured the phase structure of a glass wedge with single photons and biphotons in a Mach-Zehnder interferometer using parametric downconverted light from a Hong-Ou-Mandel particle interferometer as the source. By scanning the wedge through the focus of a microscope objective we find a doubling of the period of the interference pattern in the coincidence counts for biphotons compared to the single-photon experiment. We compare our measurement setup with classical ones and discuss some of the problems of superresolution in quantum lithography.
我们使用来自Hong-Ou-Mandel粒子干涉仪的参量下转换光作为光源，在马赫-曾德尔干涉仪中用单光子和双光子测量了玻璃楔的相位结构。通过扫描玻璃楔使其穿过显微镜物镜的焦点，我们发现与单光子实验相比，双光子符合计数中的干涉图样周期加倍。我们将我们的测量装置与传统装置进行了比较，并讨论了量子光刻中超分辨率的一些问题。
