Measurement of dc and ac Electric Fields inside an Atomic Vapor Cell with Wall-Integrated Electrodes
Measurement of dc and ac Electric Fields inside an Atomic Vapor Cell with Wall-Integrated Electrodes
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DOI：
10.1103/physrevapplied.18.024001
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发表时间：
2021-06
影响因子：
4.6
通讯作者：
Lu Ma;M. Viray;D. Anderson;G. Raithel
中科院分区：
文献类型：
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作者：
Lu Ma;M. Viray;D. Anderson;G. Raithel
我们提出并表征了一种直接嵌入在硼硅酸盐玻璃管之间的硅环电极原子蒸汽池。电池采用阳极键合的方法组装，并填充Rb蒸气。环形电极可以外部连接，以便将电场施加到电池内部。一种基于原子的、全光学的激光光谱场传感方法被用来测量电池内的电场。利用电场敏感里德堡原子的斯塔克效应测量了∼电池中5V/cm的直流电场，其相对不确定度为10%。测量结果与直流场计算结果相比较，使我们能够量化由于电池内部自由表面电荷引起的电场衰减。我们使用里德堡能级的Autler-Townes分裂作为场探测器，进一步测量了微波场在细胞中的传播。得到了相对于电池环形电极的一定范围的微波功率和极化角度的结果。我们将计算结果与微波场计算结果进行了比较。并对其应用进行了讨论。
We present and characterize an atomic vapor cell with silicon ring electrodes directly embedded between borosilicate glass tubes. The cell is assembled with an anodic bonding method and is filled with Rb vapor. The ring electrodes can be externally connectorized for application of electric fields to the inside of the cell. An atom-based, all-optical, laser-spectroscopic field sensing method is employed to measure electric fields in the cell. Here, the Stark effect of electric-field-sensitive rubidium Rydberg atoms is exploited to measure DC electric fields in the cell of ∼ 5 V/cm, with a relative uncertainty of 10%. Measurement results are compared with DC field calculations, allowing us to quantify electric-field attenuation due to free surface charges inside the cell. We further measure the propagation of microwave fields into the cell, using Autler-Townes splitting of Rydberg levels as a field probe. Results are obtained for a range of microwave powers and polarization angles relative to the cell’s ring electrodes. We compare the results with microwave-field calculations. Applications are discussed.