论文标题
基于光晶格的CS活动时钟具有连续的超级激光信号
Optical-lattice based Cs active clock with continual superradiant lasing signal
论文作者
论文摘要
我们展示了活跃时钟的最新技术，以使用光学晶格中的捕获的CS原子合奏提供连续的超级激光信号。拟议的| 7S1/2的魔术波长； F = 4，MF = 0> - | 6p3/2; F = 3，MF = 0> CS原子中的时钟过渡在1181 nm处识别用于构建光学晶格。还发现了相关的光学线，用于从其基态泵送和降低原子。通过对几种原子特性进行严格的计算，可以预测到时钟频率约10-15级的分数不确定性。预计活动时钟的不良腔操作模式将通过抑制固有的热波动来显着改善其短期稳定性。因此，可以通过将上述活跃时钟与另一个高临界的被动光学时钟相结合，可以在短期和长期稳定性上更好地构建具有更好稳定性的复合时钟系统。
We demonstrate state-of-the-art technique of an active clock to provide a continuous superradiant lasing signal using an ensemble of trapped Cs atoms in the optical lattice. A magic wavelength of the proposed |7S1/2; F = 4, MF = 0> - |6P3/2; F = 3, MF = 0> clock transition in Cs atom is identified at 1181 nm for constructing the optical lattice. Pertinent optical lines are also found for pumping and repumping atoms from their ground states. A fractional uncertainty about 10-15 level to the clock frequency has been predicted by carrying out rigorous calculations of several atomic properties. The bad-cavity operational mode of the active clock is anticipated to improve its short-term stability remarkably by suppressing intrinsic thermal fluctuations. Thus, a composite clock system with better in both short-term and long-term stabilities can be built by combining the above proposed active clock with another high-accuracy passive optical clock.
