Thorium doped strontium fluoride crystal: a unique candidate for solid nuclear optical clock material
Materials Science
2024-07-04 v1 Optics
Abstract
We report a candidate with unique advantages in the cultivation of solid-state nuclear clock material, Th:SrF2 crystal. It not only has a segregation coefficient close to 1, which can achieve highly efficient and uniform doping of Th, but also ensures a high transmittance (~69% at 150 nm) while achieving extremely high doping concentration (232Th>6*10^20 cm^(-3). In addition, SrF2 crystal will not be irradiated-colored under strong {\alpha} radiation like CaF2 crystal, Th:SrF2 crystal is expected to fully unleash its high concentration doping characteristics while ensuring its transmission performance in nuclear transition band not be severely affected by 229Th radiation damage.
Cite
@article{arxiv.2407.03128,
title = {Thorium doped strontium fluoride crystal: a unique candidate for solid nuclear optical clock material},
author = {Qiaorui Gong and Shanming Li and Shulong Zhang and Siliang Tao and Guoliang Deng and Peixiong Zhang and Chengchun Zhao and Yin Hang and Shining Zhu and Longsheng Ma},
journal= {arXiv preprint arXiv:2407.03128},
year = {2024}
}