1ST OBSERVATION OF A COLLISIONALLY INDUCED DIFFUSE BAND OF LI-7(2) AROUND 452NM

被引：8

作者：

GONDAL, MA ^{[1
]}

SHAHDIN, S ^{[1
]}

SHABAN, AA ^{[1
]}

OMAR, MS ^{[1
]}

机构：

[1] POSTGRAD CTR ELECTROOPT,POB 83401,TRIPOLI,LIBYA

来源：

OPTICS COMMUNICATIONS | 1991年 / 86卷 / 02期

关键词：

D O I：

10.1016/0030-4018(91)90547-Q

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report on the first clear observation of a collisionally induced diffuse band of lithium dimer around 452.0 nm in direct single photon excitation using 337.1 nm (N2) laser radiation from an excimer laser. The band, which is being tentatively assigned to the 2(1)SIGMA(u)+ --> X1-SIGMA(g)+ transition and could only be observed at buffer gas pressures of greater-than-or-equal-to 75 mbar, had been theoretically predicted. We also report on the other violet band of Li2 around 458.0 nm, already assigned to the 2(3)PI(g) --> a 3-SIGMA(u)+ transition. Parametric dependences for the two bands are presented. Together with these continuum emissions, a number of strong atomic lithium lines are also observed. A possible correlation between the atomic and continuum emissions is presented which may help in a better understanding of the kinetics of the system.

引用

页码：128 / 134

页数：7

共 23 条

[1] THE 458 NM DIFFUSE BAND OF THE LITHIUM DIMER [J].