Polarization nano-tomography of tightly focused light landscapes by self-assembled monolayers
Polarization nano-tomography of tightly focused light landscapes by self-assembled monolayers
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DOI：
10.1038/s41467-019-12127-3
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发表时间：
2019-09
影响因子：
16.6
通讯作者：
E. Otte;Kemal Tekce;Sebastian Lamping;B. Ravoo;C. Denz
中科院分区：
文献类型：
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作者：
E. Otte;Kemal Tekce;Sebastian Lamping;B. Ravoo;C. Denz
近年来，四维(4D)功能纳米材料因其在纳米(光电子)电子学、生物技术或生物医学等前沿领域的应用而备受关注。突出的光学功能化代表第四维度，需要精确定制的光场来实现其最佳实施。这些场需要是类似的4D，即，在三维(3D)空间中的纳米结构，而极化嵌入额外的纵向分量。虽然已经提出了几种实现4D场的方法，但由于缺乏适当的分析技术，这些方法的突破受到了阻碍。结合分子自组装，即纳米化学和纳米光学，我们提出了一种利用功能材料本身作为传感器的各个领域的偏振纳米层析成像。我们的方法允许在纳米级分辨率下单次识别非傍轴光场，而无需任何数据后处理。我们从数值和实验上证明了它的功能，阐明了它的幅度、相位和三维偏振敏感性。我们分析了非傍轴场的性质，展示了我们的方法在下一代4D材料中的能力和潜力。
Recently, four-dimensional (4D) functional nano-materials have attracted considerable attention due to their impact in cutting-edge fields such as nano-(opto)electronics, -biotechnology or -biomedicine. Prominent optical functionalizations, representing the fourth dimension, require precisely tailored light fields for its optimal implementation. These fields need to be like-wise 4D, i.e., nano-structured in three-dimensional (3D) space while polarization embeds additional longitudinal components. Though a couple of approaches to realize 4D fields have been suggested, their breakthrough is impeded by a lack of appropriate analysis techniques. Combining molecular self-assembly, i.e., nano-chemistry, and nano-optics, we propose a polarization nano-tomography of respective fields using the functional material itself as a sensor. Our method allows a single-shot identification of non-paraxial light fields at nano-scale resolution without any data post-processing. We prove its functionality numerically and experimentally, elucidating its amplitude, phase and 3D polarization sensitivity. We analyze non-paraxial field properties, demonstrating our method’s capability and potential for next generation 4D materials.