High-Resolution Near-Field Imaging and Far-Field Antenna Measurements with Atomic Sensors
High-Resolution Near-Field Imaging and Far-Field Antenna Measurements with Atomic Sensors
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DOI：
10.1109/emceurope.2018.8485102
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发表时间：
2018-08
期刊：
影响因子：
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通讯作者：
D. Anderson;E. Paradis;Georg Raithe;R. Sapiro;M. Simons;C. Holloway
中科院分区：
文献类型：
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作者：
D. Anderson;E. Paradis;Georg Raithe;R. Sapiro;M. Simons;C. Holloway
近年来，基于蒸气中里德伯态的量子光学光谱的原子传感器测量射频（RF）电场引起了人们极大的兴趣，用于建立RF电场的原子标准和开发新型RF传感仪器。在这里，我们描述了最近的工作，采用原子传感器的亚波长近场成像的Ku波段喇叭天线。我们证明了近场成像能力在空间分辨率为λ/10和测量超过72至240 V/m的场范围内使用非共振交流斯塔克位移的里德伯原子共振。一个光纤耦合的原子传感器探头也被用于WR-90标准增益喇叭的远场测量。
Measurements of radio-frequency (RF) electric fields using atomic sensors based on quantum-optical spectroscopy of Rydberg states in vapors has garnered significant interest in recent years for the establishment of atomic standards for RF electric fields and towards the development of novel RF sensing instrumentation. Here we describe recent work employing atomic sensors for sub-wavelength near-field imaging of a Ku- band horn antenna. We demonstrate near-field imaging capability at a spatial resolution of λ/10 and measurements over a 72 to 240 V/m field range using off-resonance AC-Stark shifts of a Rydberg-atom resonance. A fiber-coupled atomic-sensor probe is also employed in far-field measurements of a WR-90 standard gain horn.