Synthetic Alkali Atom Vapor Density for Atom-Based Sensors

The DON26BZ01-NV037 project aims to simplify thermal management in atom-based quantum sensors by developing passive atom sources for rubidium or cesium, operating at thermal equilibrium using synthetic alkali vapor density. These sensors, crucial for atomic clocks, magnetometers, and inertial sensors, require stable atomic vapor. Current methods involve active approaches or high operating temperatures, leading to increased size, weight, and power (SWaP). The objective is to create a mixture of primary and secondary alkali species to reduce equilibrium vapor density, allowing for lower operating temperatures (30-85°C) and reduced SWaP. Phase I focuses on demonstrating vapor density reduction through predetermined mixtures, while Phase II involves producing these mixtures in atom-trapping chambers for evaluation. Phase III targets transitioning this technology for Navy use, with dual-use applications in biomedical, communications, and navigation fields, ultimately improving cold atom systems.