双光子三能级光子回波及其在原子间碰撞截面测量中的应用

Two-photon Tri-level Echo and Its Applicatiou in Measuring the Inter-atoms Collisional Cross-section

本文用弹球模型讨论了双光子三能级光子回波的形成。实验上在 Na 蒸汽中观察到了这种光子回波。并报导了用光子回波测量 Na 3 D-3 P 态原子和 Ar 原子碰撞截面的结果。

The Billiard-Ball Model has been used to discuss the formation of Two-photon Tri-level Echo.Experimentally it was used to measure the collisional cross-section between the Na 3 D+3P atom and Ar atom.