Compact Blackbody Radiation Atomic Sensor: Measuring Temperature using Optically Excited Atoms in Vapor Cells
Atomic Physics
2024-11-21 v1
Abstract
We demonstrate a blackbody radiation thermometer based on optically excited rubidium atoms in a vapor cell. The temperature measurement is fast, with statistical uncertainty as low as 0.1% in one second. We resolve temperature with a precision of 0.04% in the range 308 K to 344 K when averaging for several seconds. Additionally, we describe an extension to this measurement scheme where the device operates as a self-calibrated, or primary, thermometer. We make progress toward realizing a primary thermometer by demonstrating a temperature-dependent self-consistent calibration scheme, with temperature accuracy of order 1% limited by the uncertainty in atomic transition dipole matrix elements.
Keywords
Cite
@article{arxiv.2411.13426,
title = {Compact Blackbody Radiation Atomic Sensor: Measuring Temperature using Optically Excited Atoms in Vapor Cells},
author = {David S. La Mantia and Mingxin Lei and Nikunjkumar Prajapati and Noah Schlossberger and Matthew T. Simons and Christopher L. Holloway and Julia Scherschligt and Stephen P. Eckel and Eric B. Norrgard},
journal= {arXiv preprint arXiv:2411.13426},
year = {2024}
}