分子角动量定向布居的制备探测和它的碰撞弛豫

Preparation, Detection and Collision Decay of Angular Momentum Orientation in Molecules

利用受激Ｒａｍａｎ泵浦，使线性分子Ｃ２Ｈ２选择性地制备振动态角动量定向市居参数Ａ０（１）达到０．７～０．８．并测定了角动量定向布居碰撞诱导的弛豫速率常数。采用园偏振的紫外激光诱导荧光方法，可表征分子角动量定向布居的制备和它的碰撞弛豫过程。

Using stimulated Raman pumping the angular momentum of molecules in a vibrationall excited state can be oriental. Linear molecules like acetylene can be prepared with rovibrational state selectivity with an orientation parameter of A0(1)=0.7 to 0.8. The rate constants of Orientation decay have been also at first the measured.