Depolarization effect of a vapor cell in atom-based radio-frequency electric field measurement
| Autor: | Shanxia Bao, Zhenfei Song, Wanfeng Zhang, Huihui Mu |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Physics and Astronomy (miscellaneous) General Engineering food and beverages General Physics and Astronomy Depolarization 02 engineering and technology 021001 nanoscience & nanotechnology Polarization (waves) 01 natural sciences Vapor cell Characteristic mode analysis Electric field 0103 physical sciences Rydberg atom Atom Physics::Accelerator Physics Physics::Atomic Physics Radio frequency Atomic physics 010306 general physics 0210 nano-technology |
| Zdroj: | Japanese Journal of Applied Physics. 57:090310 |
| ISSN: | 1347-4065 0021-4922 |
| Popis: | The Rydberg atom can be used as an active probe for precision radio-frequency (RF) electric field (E-field) measurement; however, the RF cavity resonance and scattering effect of an atomic vapor cell lead to polarization distortion inside the cell, and the depolarization effect limits the sensitivity and accuracy of E-field measurement. The finite element simulation and characteristic mode analysis of a hollow-cavity model are implemented to find an optimized solution of minimizing such depolarization. Manipulating atoms in the middle layer of a vapor cell along an incident field vector can avoid the depolarization, which is validated by the vector distribution measurement at 15.09 GHz. |
| Databáze: | OpenAIRE |
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