论文标题
$ {}^1 \ text {s} _0- {}^{1} \ text {p} _1 $ transitions in Strontium和其他碱性原子中的过渡
Tellurium Spectrometer for ${}^1\text{S}_0-{}^{1}\text{P}_1$ Transitions in Strontium and Other Alkaline-Earth Atoms
论文作者
论文摘要
We measure the spectrum of tellurium-130 in the vicinity of the 461~nm ${}^1\text{S}_0-{}^{1}\text{P}_1$ cycling transition in neutral strontium, a popular element for atomic clocks, quantum information, and quantum-degenerate gases.在柜中缺乏超细结构导致过渡的光谱密度比碘中可用的近50倍，利用泰瑞尔作为激光频率参考具有挑战性。通过锁定两个激光器，我们生成了跨越校区和$ {}^1 \ text {s} _0- {}^1 \ text {p} _1 $ in trontium或其他碱性元素的差异所需的大频移。所得的激光体系结构是长期频率稳定，可广泛调谐的，并优化了可用的激光功率。通过使用它快速在磁光陷阱中的所有同位素之间切换并将其调整为具有不同碱土原子的热束上的光谱，可以证明系统的多功能性。
We measure the spectrum of tellurium-130 in the vicinity of the 461~nm ${}^1\text{S}_0-{}^{1}\text{P}_1$ cycling transition in neutral strontium, a popular element for atomic clocks, quantum information, and quantum-degenerate gases. The lack of hyperfine structure in tellurium results in a spectral density of transitions nearly 50 times lower than that available in iodine, making use of tellurium as a laser-frequency reference challenging. By frequency-offset locking two lasers, we generate the large frequency shifts required to span the difference between a tellurium line and the ${}^1\text{S}_0-{}^1\text{P}_1$ resonance in strontium or other alkaline-earth atom. The resulting laser architecture is long-term frequency stable, widely tunable, and optimizes available laser power. The versatility of the system is demonstrated by using it to quickly switch between any strontium isotope in a magneto-optical trap and by adapting it to spectroscopy on a thermal beam with a different alkaline-earth atom.
