Quantum Calligraphy: Writing Single-Photon Emitters in a Two-Dimensional Materials Platform
Quantum Calligraphy: Writing Single-Photon Emitters in a Two-Dimensional Materials Platform
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DOI：
10.1021/acsnano.8b08730
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发表时间：
2019-01-01
期刊：
影响因子：
17.1
通讯作者：
Jonker, Berend T.
中科院分区：
文献类型：
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作者：
Rosenberger, Matthew R.;Dass, Chandriker Kavir;Jonker, Berend T.
我们提出了一种将应变编码到二维材料（2DM）中的范例，以纳米级精度在任意位置创建并确定性地放置单光子发射器（SPE）。我们的材料平台由放置在可变形聚合物膜顶部的2DM组成。当使用原子力显微镜尖端施加足够的机械应力时，2DM/聚合物复合材料变形，从而形成具有优异控制和可重复性的高度局部化的应变场。我们发现，SPE的创建和本地化在这些nanoindents和表现出单光子发射高达60 K，在这些材料中报道的最高温度。这种量子书法允许SPE的任意图案的确定性放置和真实的时间设计，以便于与光子波导、腔和等离子体结构耦合。除了能够灵活放置SPE外，这些结果还提供了一种以纳米级精度将应变赋予2DM的通用方法，为2DM和2DM器件的应变工程的进一步研究和未来应用提供了宝贵的工具。
We present a paradigm for encoding strain into two-dimensional materials (2DMs) to create and deterministically place single-photon emitters (SPEs) in arbitrary locations with nanometer-scale precision. Our material platform consists of a 2DM placed on top of a deformable polymer film. Upon application of sufficient mechanical stress using an atomic force microscope tip, the 2DM/polymer composite deforms, resulting in formation of highly localized strain fields with excellent control and repeatability. We show that SPEs are created and localized at these nanoindents and exhibit single-photon emission up to 60 K, the highest temperature reported in these materials. This quantum calligraphy allows deterministic placement and real time design of arbitrary patterns of SPEs for facile coupling with photonic waveguides, cavities, and plasmonic structures. In addition to enabling versatile placement of SPEs, these results present a general methodology for imparting strain into 2DM with nanometer-scale precision, providing an invaluable tool for further investigations and future applications of strain engineering of 2DM and 2DM devices.