定制电磁浴中的强场空间干涉
Strong-field spatial interference in a tailored electromagnetic bath
摘要：
被规则结构的原子散射的光可以表现出干涉特征，类似于经典的双缝。然而，这些一阶干涉在强光下消失，限制了潜在的应用。在这里，我们展示了如何克服这些限制，在强场量子干涉。首先，我们通过一个具有合适频率依赖性的定制电磁浴来恢复强场中的一阶干涉。在强驱动下，不同光谱带的光学性质是不同的，从而扩展了可观测量的集合。我们进一步表明，对于双光子探测器，例如，在光刻中，与弱场情况相比，增加场强度导致二阶干涉图案的空间分辨率的两倍。
英文摘要：
Light scattered by a regular structure of atoms can exhibit interference signatures, similar to the classical double-slit. These first-order interferences, however, vanish for strong light intensities, restricting potential applications. Here, we show how to overcome these limitations to quantum interference in strong fields. First, we recover the first-order interference in strong fields via a tailored electromagnetic bath with a suitable frequency dependence. At strong driving, the optical properties for different spectral bands are distinct, thus extending the set of observables. We further show that for a two-photon detector as, e.g., in lithography, increasing the field intensity leads to twice the spatial resolution of the second-order interference pattern compared to the weak-field case.
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