论文标题
使用浅色状态克服固体光冷却中的温度限制
Overcoming temperature limits in the optical cooling of solids using light-dressed states
论文作者
论文摘要
固体的激光冷却目前的温度底部为50-100K。我们提出了一种可以使用缺陷（例如钻石颜色中心），具有狭窄的电子歧管和明亮的光学转变来克服这种方法。它利用在强场上形成的穿着状态，这些状态扩展了声子过渡的集合并具有可调能的能量。这允许增强冷却能力，并减少不均匀拓宽的效果。我们从理论上证明了这些对硅的效果和锗呈现的作用，并讨论了背景吸收，声子辅助发射和非辐射衰变的作用。
Laser cooling of solids currently has a temperature floor of 50 - 100 K. We propose a method that could overcome this using defects, such as diamond color centers, with narrow electronic manifolds and bright optical transitions. It exploits the dressed states formed in strong fields which extend the set of phonon transitions and have tunable energies. This allows an enhancement of the cooling power and diminishes the effect of inhomogeneous broadening. We demonstrate these effects theoretically for the silicon-vacancy and the germanium-vacancy, and discuss the role of background absorption, phonon-assisted emission, and non-radiative decay.
