This paper presents a design process for miniaturized atomic vapor cells using the micro-glassblowing process. It discusses multiple design considerations, including cell geometry, optical properties, materials, and surface coating. The geometry and the optical properties were studied using experimentally verified analytical and Finite Element Models (FEM). The cell construction material and surface coating were the focus of our experimental study on factors that affect the relaxation time (T2) of nuclear spins. We showed that the wafer-level coating process with Al2O3 increased the 131Xe T2 by $3\times $ and by switching from Borosilicate glass (Pyrex) to Aluminosilicate glass (ASG), T2 was improved by $2.5\times $ , for the same species. The improvement in the T2 is projected to reduce the ARW of an NMR gyro and the sensitivity of an NMR magnetometer by $3\times $ with Al2O3 coated cells and by $2.5\times $ with ASG cells. [2019-0158]

中文翻译：

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微玻璃吹制原子蒸气电池的设计考虑

本文介绍了使用微玻璃吹制工艺的小型化原子蒸气室的设计过程。它讨论了多种设计注意事项，包括电池几何形状、光学特性、材料和表面涂层。使用经过实验验证的解析模型和有限元模型 (FEM) 研究了几何形状和光学特性。细胞结构材料和表面涂层是我们对影响核自旋弛豫时间 (T2) 因素的实验研究的重点。我们表明，使用 Al2O3 的晶圆级涂层工艺使 131Xe T2 增加了 $3\times $ 并且通过从硼硅玻璃 (Pyrex) 转换为铝硅玻璃 (ASG)，T2 提高了 $2.5\times $ ，对于同一物种。T2 的改进预计将降低 NMR 陀螺仪的 ARW 和 NMR 磁力计的灵敏度 $3\times $ 带有 Al2O3 涂层的电池和通过 $2.5\times $ 与 ASG 细胞。[2019-0158]