高效率的无线电频率天线用于无放大器量子传感应用
S Mahtab1, P Milas1, D-T Veal1
1Department of Physics and Engineering Physics, Morgan State University, Baltimore, Maryland 21234, USA.
The Review of scientific instruments
|December 11, 2023
概括
高效率的射频 (RF) 天线是为量子传感设计的. 这些天线能够有效地将射频信号合到钻石中的空 (NV) 中心,以便在没有放大器的情况下检测磁场.
科学领域:
- 量子信息科学 量子信息科学
- 材料科学 材料科学 材料科学
- 电气工程 电气工程
背景情况:
- 无线电频率 (RF) 信号对于量子应用中操纵自旋状态至关重要.
- 有效地将射频信号与量子系统相合,例如钻石中的空位 (NV) 中心,需要专门的天线.
- 钻石中的NV中心被广泛用于通过光学检测磁共振 (ODMR) 的量子传感.
研究的目的:
- 为量子传感应用设计和制造高效率的共平面射频天线.
- 为了使高效的射频信号合到NV,钻石中的缺陷用于增强磁场传感.
主要方法:
- 单环和双环共平面射频天线的设计.
- 设计的共平面射频天线的制造.
- 使用返回损失测量和使用NV中心的磁场传感实验来描述天线性能.
主要成果:
- 在2.87GHz时实现了-37dB的返回损失,这是NV缺陷的特征频率.
- 在使用NV颜色中心的磁场传感实验中证明了高天线效率.
- 启用了使用标准射频信号发生器 (0 dB输出) 的ODMR实验,消除了对射频放大器的需求.
结论:
- 开发的共平面射频天线为量子传感应用提供了高效率.
- 这些天线有助于改善射频信号与钻石中的NV缺陷的合.
- 高效率通过消除对外部射频放大的要求来简化实验设置.
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