Characterization of high-temperature performance of cesium vapor cells with anti-relaxation coating

TL;DR

This paper investigates how different anti-relaxation coatings in cesium vapor cells perform at high temperatures, showing that increasing temperature enhances magnetometer sensitivity and highlighting their potential in advanced applications.

Contribution

It provides a detailed characterization of high-temperature performance of cesium vapor cells with various coatings, demonstrating improved sensitivity at elevated temperatures.

Findings

Spin relaxation time increases with temperature.

Magnetometer sensitivity improves at higher temperatures.

Coating materials significantly influence cell performance.

Abstract

Vapor cells with antirelaxation coating are widely used in modern atomic physics experiments due to the coating's ability to maintain the atoms' spin polarization during wall collisions. We characterize the performance of vapor cells with different coating materials by measuring longitudinal spin relaxation and vapor density at temperatures up to 95{\deg}C. We found that the spin-projection-noise-limited sensitivity for atomic magnetometers with such cells improves with temperature, which demonstrates the potential of antirelaxation coated cells in applications of future high-sensitivity magnetometers.