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Zeeman-tunable modulation transfer spectroscopy

机译:Zeeman可调调制转移光谱

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摘要

Active frequency stabilization of a laser to an atomic or molecular resonance underpins many modern-day AMO physics experiments. With a flat background and high signal-to-noise ratio, modulation transfer spectroscopy (MTS) offers an accurate and stable method for laser locking. However, despite its benefits, the four-wave mixing process that is inherent to theMTS technique entails that the strongest modulation transfer signals are only observed for closed transitions, excluding MTS from numerous applications. Here we report for the first time, to the best of our knowledge, the observation of a magnetically tunable MTS error signal. Using a simple two-magnet arrangement, we show that the error signal for the Rb-87 F = 2 -> F' = 3 cooling transition can be Zeeman-shifted over a range of >15 GHz to any arbitrary point on the rubidium D-2 spectrum. Modulation transfer signals for locking to the Rb-87 F = 1 -> F' = 2 repumping transition, as well as 1 GHz red-detuned to the cooling transition, are presented to demonstrate the versatility of this technique, which can readily be extended to the locking of Raman and lattice lasers. Published by The Optical Society under the terms of the Creative Commons Attribution 4.0 License.
机译:激光的主动频率稳定对原子或分子共振的基础是许多现代amo物理实验。通过平坦的背景和高信噪比,调制传输光谱(MTS)提供了一种准确稳定的激光锁定方法。然而,尽管它的好处,但是题材技术固有的四波混合过程需要最强的调制传输信号,仅针对闭合转换观察到,从许多应用中排除MT。在这里,我们首次报告,据我们所知,观察磁性调谐MTS误差信号。使用简单的双磁体布置,我们表明RB-87 F = 2 - > F'= 3冷却过渡的误差信号可以是Zeeman转移到Rubidium D上的任何任意点的一个> 15GHz -2频谱。用于锁定到RB-87 F = 1 - > F'= 2重新静止的转换的调制传输信号,以及1 GHz对冷却转换的RBz棘爪,以证明该技术的多功能性,可以容易地延长锁定拉曼和格子激光器。光学社会在创意公约归因4.0许可的条款下发表。

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  • 来源
    《Optics Letters》 |2019年第21期|共4页
  • 作者单位

    Univ Durham Dept Phys Joint Quantum Ctr Durham Newcastle South Rd Durham DH1 3LE England;

    Univ Durham Dept Phys Joint Quantum Ctr Durham Newcastle South Rd Durham DH1 3LE England;

    Univ Durham Dept Phys Joint Quantum Ctr Durham Newcastle South Rd Durham DH1 3LE England;

    Univ Durham Dept Phys Joint Quantum Ctr Durham Newcastle South Rd Durham DH1 3LE England;

    Univ Durham Dept Phys Joint Quantum Ctr Durham Newcastle South Rd Durham DH1 3LE England;

    Univ Durham Dept Phys Joint Quantum Ctr Durham Newcastle South Rd Durham DH1 3LE England;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 计量学;光学;
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