Collisional quenching of HgBr(B2∑+12)
✍ Scribed by H. Helvajian; C. Wittig
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 240 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0030-4018
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We report a study of the rtet coiI1slona1 removal of HgBr(X %fn, U" = 22) by Oz. N2. Hz, He, Ne, Ar, K&and Xe. Z&e coefficients are large, mdrcatmg that deativation of the lower laser levels m the HgBr(B + X) lasers proceeds efiiciently.
The fast biiolecular reaction HgBr + Br2 -+ HgBr2 -I-Br is shown to be responsible for the observed mpid and efiicient regeneration of HgBrZ in cyclic operation of the repetitively pulsed HgBr photodissociation laser. The rate constant for this reaction has been measured to be (7.7 + 0.6) X lo-" cm3
The quenching of electronically excited chlorine atoms, CI( 3 'PI ?). by several gases has been studied using a small gain laser pulse method, based on photochemical Cl and I lasers, operating on spin-orbit transitions 2P,,Z,F+\*P3,Z,F... The quenching efliciencies for HZ, D,, CO, and SF6 are shown