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arXiv · 2406.16841

Proposal for the generation of continuous-wave vacuum ultraviolet laser light for Th-229 isomer precision spectroscopy

Qi Xiao·Gleb Penyazkov·Ruihan Yu·Beichen Huang·Jiatong Li·Juanlang Shi·Yanmei Yu·Yuxiang Mo·Shiqian Ding
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Abstract

We propose to generate continuous-wave vacuum ultraviolet (VUV) laser light at 148.4 nm using four-wave mixing in cadmium vapor for precision spectroscopy of the Th-229 isomer transition. Due to the large transition matrix elements of cadmium, the readily accessible wavelengths for the incident laser beams, and the high coherence of the four-wave mixing process, over 30 $\mu$W of VUV power can be generated with a narrow linewidth. This development paves the way for coherently driving the Th-229 isomer transition and developing the nuclear optical clock.

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Qi Xiao, Gleb Penyazkov, Ruihan Yu, Beichen Huang, Jiatong Li, Juanlang Shi, Yanmei Yu, Yuxiang Mo, Shiqian Ding. 2024-06-24. Proposal for the generation of continuous-wave vacuum ultraviolet laser light for Th-229 isomer precision spectroscopy. https://arxiv.org/abs/2406.16841

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