Characterization of isotropic laser cooling for application in quantum sensing

Y Quantum sensing with cold atoms is attracting more and more attention in the research frontier of quantum technologies. Isotropic laser cooling serves as a promising platform for this area and its many advantages include compactness, robustness, and not requiring fine-tuning of the optical alignment or magnetic field, which are particularly suitable for field and space applications. We have designed and demonstrated a special form of isotropic laser cooling system that is specifically tailored for the purpose of quantum sensing. In particular, the diffused cooling optical field is generated by hollow laser beam injection and the quality of detection process is improved. Moreover, the effective strength of diffused cooling laser is quantitatively deduced. We have carefully characterized the properties of our system, including the laser cooling performances with respect to different parameter settings, the influences of cooling laser polarization and repumping laser power, and radial atom density distribution. We anticipate that our progress will contribute to the future development of isotropic laser cooling for quantum sensing and quantum precision measurements. (C) 2021 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

Automated summary

Cold atom quantum sensing utilizing isotropic laser cooling is a promising area of research that offers advantages such as compactness and robustness. The study presents a specially tailored isotropic laser cooling system designed for quantum sensing applications, demonstrating improved detection processes and quantitatively deduced laser strength. Characterization of the system's properties and performance enhancements for future developments in quantum sensing and precision measurements are highlighted.