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arXiv 2203.00883physics.atom-ph
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用于囚禁镱离子的739 nm激光器的$I_2$光谱频率稳定

Frequency stabilization of a 739 nm laser to an $I_2$ spectrum for trapped Ytterbium ions

Hao Wu, PengFei Lu, Yang Liu, JiangYong Hu, QiFeng Lao, XinXin Rao, LunHua Deng, Feng Zhu, Le Luo

AI总结:

本研究利用声光调制转移光谱将739 nm钛宝石激光稳定到碘分子超精细跃迁,实现13 s平均下$3.83×10^{-11}$的稳定度,优化后达理论信噪比,为囚禁镱离子实验的激光锁定提供理想频率参考。

摘要:

我们报道了利用声光调制转移光谱(MTS),将739 nm钛宝石激光器的频率稳定到$^{127}I_{2}$ B(1)-X(11) P(70)跃迁的超精细分量上的研究。当激光器频率稳定后,在约13 s的平均时间下获得了$3.83\times 10^{-11}$的频率稳定度。观测到的碘分子超精细跃迁是锁定囚禁镱离子实验所用激光器的理想频率参考,因为其二次谐波频率对应369.5 nm处镱离子的$^{2}S_{\frac{1}{2}}-^{2}P_{\frac{1}{2}}$跃迁。通过研究碘蒸气压和激光功率导致的谱线展宽效应,我们将锁定效果优化至该碘跃迁的理论信噪比(TSNR)水平。

英文摘要:

We report on the frequency stabilization of a 739 nm Ti:sapphire laser to a hyperfine component of the $^{127}I_{2}$ B(1)-X(11) P(70) transition using acousto-optic modulation transfer spectroscopy (MTS). A frequency stability of $3.83\times 10^{-11}$ around 13 s averaging time is achieved when the laser frequency is stabilized. The observed hyperfine transition of the molecular iodine is an ideal frequency reference for locking the lasers used in experiments with trapped ytterbium ions, since its second harmonic frequency is the $^{2}S_{\frac{1}{2}}-^{2}P_{\frac{1}{2}}$ transition of the ytterbium ion at 369.5 nm. By investigating the line broadening effects due to the iodine vapor pressure and laser power, the locking is optimized to the theoretical signal to noise ratio (TSNR) of this iodine transition.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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