Simultaneous Determination of the Spin Polarizations of Noble-Gas and Alkali-Metal Atoms Based on the Dynamics of the Spin Ensembles
| Autor: | Xiujie Fang, Kai Wei, Yueyang Zhai, Hairong Li, Bangcheng Han, Wei Quan, Tian Zhao |
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| Rok vydání: | 2020 |
| Předmět: |
Physics
Imagination Chemical substance Spins media_common.quotation_subject General Physics and Astronomy 02 engineering and technology Electron 021001 nanoscience & nanotechnology Alkali metal Polarization (waves) 01 natural sciences Low magnetic field 0103 physical sciences Physics::Atomic and Molecular Clusters Atomic physics 010306 general physics 0210 nano-technology media_common |
| Zdroj: | Physical Review Applied. 13 |
| ISSN: | 2331-7019 |
| Popis: | We demonstrate a method for simultaneously measuring the spin polarizations of noble-gas and alkali-metal atoms. Under a low magnetic field, the polarized alkali-metal and noble-gas spin ensembles exhibit novel dynamics in the self-compensation and resonance regimes, which can be used to measure the polarizations. We perform this method on a $\mathrm{K}$-$\mathrm{Rb}$-${}^{21}$$\mathrm{Ne}$ comagnetometer with various operation temperatures and pump-light intensities. The polarization of alkali-metal electrons from 0.245 to 0.964 and the polarization of noble-gas nuclear spins from 0.01 to 0.065 are measured with relative uncertainties less than $12.4\mathrm{%}$. The measured polarizations are consistent with the theoretical model and are also verified by the traditional polarization-measurement method. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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