Rotational state dependence of transient linewidths in the CO2 0001 vibrational level due to translational energy recoil from hot H and D atom collisions
作者:John F. Hershberger、James Z. Chou、George W. Flynn、Ralph E. Weston
DOI:10.1016/0009-2614(88)80347-6
日期:1988.8
The nascent transient linewidths of the CO2 0001, J→0002, J−1 transitions were measured immediately following collisions with hot H and D atoms of 2.30 and 2.16 eV energy, respectively. All lineshapes were well fitted by Gaussian profiles, but were significantly broader than the room-temperature Doppler profiles. D atom collisions resulted in broader linewidths than H atom collisions. The observed
在分别与2.30和2.16 eV能量的热H和D原子碰撞后,立即测量了CO 2 00 0 1,J →00 0 2,J -1跃迁的新生瞬态线宽。所有的线形都可以很好地拟合高斯剖面,但比室温多普勒剖面要宽得多。与H原子碰撞相比,D原子碰撞产生的线宽更宽。对于特定的旋转水平J,观察到的宽度与简单的台球模型非常吻合。但是,对于热的H和热的D原子碰撞,在00 0 1流形中观察到线宽随旋转状态的增加而增加。