We theoretically modeled and experimentally demonstrated the collision-induced interaction of ${}^{131}\mathrm{Xe}$ nuclear spins, including the Fermi contact interaction and wall-dependent quadrupole relaxation. We utilized heater-integrated, wafer-level microfabricated ${}^{87}\mathrm{Rb}\text{−}{}^{131}\mathrm{Xe}$ atomic vapor cells with a single-chamber cylindrical structure and a single-beam absorption-based atomic magnetometer to probe hyperpolarized ${}^{131}\mathrm{Xe}$ nuclei precession in situ. We investigated the interaction of ${}^{131}\mathrm{Xe}$ nuclear spins with ${}^{87}\mathrm{Rb}$ alkali-metal vapor atoms and atomic vapor cell walls consistent with the theoretical model. Furthermore, we measured a Fermi contact factor of approximately $510\pm 40$, which reveals an enhancement in the spin-exchange collisions for ${}^{87}\mathrm{Rb}\text{−}{}^{131}\mathrm{Xe}$, and an activation energy of $0.18\pm 0.02$ eV, which characterizes the desorption and diffusion process of ${}^{131}\mathrm{Xe}$ induced by the wall collision process. These results can inspire the development of chip-scale atomic spin devices with enhanced stability and sensitivity.

Close

PrevNext

View figure in article

• Fine & hyperfine structure
• Light-matter interaction
• Optical pumping