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基于金刚石NV色心的温度传感

林豪彬 张少春 董杨 郑瑜 陈向东 孙方稳

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基于金刚石NV色心的温度传感

林豪彬, 张少春, 董杨, 郑瑜, 陈向东, 孙方稳

Temperature sensing with NV center in diamond

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  • 在各种物理量中,温度是最直观和最普遍的量。温度的剧烈变化通常意味着物体的物理属性出现波动,因此在各个领域中温度往往都是重要的指标。随着科学技术的发展,许多领域研究和应用的尺度越来越小。然而,在小于10微米的空间尺度内还没有有效的温度测量方法。除了空间分辨率的要求,传感器在测量过程中不应该对被测对象有巨大影响。金刚石氮-空位色心(Nitrogen Vacancy center, NV)是一种稳定的发光缺陷,通过对其能谱和电子自旋量子态的测量,可以获得附近温度、电磁场等物理量的信息。由于金刚石的化学特性稳定和热导率高,可以进行纳米尺度的非破坏性物理量测量。它对细胞无毒,也可以用于生命领域研究中。此外,根据金刚石的特性,NV 色心可以与光纤,扫描显微镜等技术结合,实现不同场景中的温度测量。本文将介绍金刚石NV 色心的温度特性、测温原理及在相关领域的应用。
    Temperature is the most intuitive and widespread quantity among various physical fields. Dramatic changes in temperature usually indicate the appearance of anomalies. Therefore, temperature is often an important indicator. With the development of science and technology, the scales in many fields are becoming more and more miniaturized. However, there are no mature temperature measurement systems in scenarios where the spatial scale is less than 10 microns. In addition to the spatial resolution requirement, the sensor may not have a dramatic impact on the object to be measured. The nitrogen vacancy center (NV) in diamond is a stable luminescence defect. The measurement of its spectrum and spin state can be used to obtain information about physical quantities near the color center, such as temperature and electro-magnetic field. Due to its stable chemical properties and high thermal conductivity, NV center can be applied in noninvasive detection for nano-scale researches. It also can be used in the life field because it is non-toxic to cells. Moreover, combined with different techniques, such as optical fiber, scanning thermal microscopy, NV centers can be used to achieve local temperature measurements in different scenarios. This paper focuses on the temperature properties, the method of temperature measurement, and related applications of NV centers.
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出版历程
  • 收稿日期:  2021-09-30
  • 上网日期:  2021-11-16

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