Gao Feng, Cundiff Steven T, Li Hebin
Opt Lett. 2016 Jul 1;41(13):2954-7. doi: 10.1364/OL.41.002954.
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.
我们在铷蒸汽上实现了双量子二维光谱，并表明该技术可对偶极-偶极相互作用进行灵敏且无背景的检测。二维光谱包含来自单个原子和原子间相互作用的信号，从而能够对这种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于重现实验光谱并确认双量子信号的来源。
