Probing dipole-dipole interaction in a rubidium gas via double-quantum 2D spectroscopy.
Probing dipole-dipole interaction in a rubidium gas via double-quantum 2D spectroscopy.
复制标题
通过双量子二维光谱探测铷气体中的偶极子-偶极子相互作用。
作者：
Feng Gao;S. Cundiff;Hebin Li
我们已经实现了双量子二维光谱的铷蒸气，并表明，这种技术提供了灵敏的和无背景的检测偶极-偶极相互作用。二维光谱包括来自单个原子和原子间相互作用的信号，允许对相互作用进行定量研究。基于光学布洛赫方程的理论模型被用来再现实验光谱，并确认双量子信号的起源。
We have implemented double-quantum 2D spectroscopy on a rubidium vapor and shown that this technique provides sensitive and background-free detection of the dipole-dipole interaction. The 2D spectra include signals from both individual atoms and interatomic interactions, allowing quantitative studies of the interaction. A theoretical model based on the optical Bloch equations is used to reproduce the experimental spectrum and confirm the origin of double-quantum signals.