用于量子传感应用的具有亚衍射空间分辨率的共焦-原子力显微镜组合装置

IF 1.9 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Physica Status Solidi A-applications and Materials Science Pub Date : 2024-09-05 DOI:10.1002/pssa.202400541

Sergei Tofimov, Boris Naydenov

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引用次数: 0

摘要

量子传感器的应用范围从材料科学到生物物理学。金刚石中的氮空位（NV）中心已成功用于测量各种类型的信号。在共聚焦显微镜中常规使用的光学 NV 中心读出可实现低至衍射极限的高空间分辨率。这项研究详细描述了共焦-原子力显微镜（confocal-AFM）组合，它利用了尖锐的原子力显微镜悬臂，并展示了其在纳米级分辨率方面的可能应用。它展示了利用铂涂层悬臂对 NV 中心的亚衍射定位，以及利用铁磁涂层悬臂单独处理光学未分辨传感器的能力。该装置的横向分辨率为 13 纳米，为纳米级量子传感提供了一种工具。

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Combined Confocal‐Atomic‐Force Microscope Setup for Quantum Sensing Applications with Sub‐diffractional Spatial Resolution

Quantum sensors find applications ranging from material science to biophysics. Nitrogen‐vacancy (NV) center in diamond has been successfully implemented for measuring various types of signals. Optical NV center readout, routinely used in confocal microscopes, allows achieving high spatial resolution down to the diffraction limit. This work describes in detail the combined confocal‐atomic‐force microscope (confocal‐AFM), which takes advantage of sharp AFM cantilevers, and shows its possible applications for nanoscale resolution. It demonstrates the sub‐diffractional localization of NV centers with platinum‐coated cantilevers and the ability to separately address optically unresolved sensors using cantilevers with ferromagnetic coating. The presented setup exhibits a lateral resolution of 13 nm, providing a tool for nanoscale quantum sensing.

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来源期刊

Physica Status Solidi A-applications and Materials Science 工程技术-材料科学：综合

CiteScore

3.70

自引率

5.00%

发文量

393

审稿时长

2 months

期刊介绍： The physica status solidi (pss) journal group is devoted to the thorough peer review and the rapid publication of new and important results in all fields of solid state and materials physics, from basic science to applications and devices. Among the largest and most established international publications, the pss journals publish reviews, letters and original articles, as regular content as well as in special issues and topical sections.