Hyperfine structure has been obseervcd in laser emission from CFaI and CzFjI photodissociation lasers. Constant magnetic fields affect the time behavior of the emission by changing the relative gains of the hypcrfme transitions. Time-varying fields usually present in photodissociation lasers further
Hyperfine structure in the CF3Br photodissociation laser
โ Scribed by J.D. Campbell; J.V.V. Kasper
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- English
- Weight
- 275 KB
- Volume
- 10
- Category
- Article
- ISSN
- 0009-2614
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โฆ Synopsis
Ia& &nission betw!xg the ?P,,; and *Pan &ates of Br has been observed d&g flash photolyskof 6FsBr. The total emission &mists of transitions between several hyperke levels of these states; the time behavior of the individual em&ions from Uiese transition.4 indicatks ihat photodissociation of CF3Br preferentially pumps-Br.*Ptn (F= 1). Donovan .$d Husain [l] concluded that flash photolysii of coated,. 1.5 m radius mirrors 1.25 m apart; Laser emis-'. * Acknowled&&ent is tide to the donors df the Pkroleum ' : T&se&ch Fukd;~a&n&s&red by the Ame&& Chemi& 1 r 1 CF,Br, CF, and Br uljimately combine to form C2F&
๐ SIMILAR VOLUMES
A transient absorption spectrum has been observed in the pulsed CO2 laser photodissociation of CFzBrz. This has been assigned to the intermediate CFsBr radical. The spectrum shows a broad band in the region of 220-320 nm with a maximum around 260 nm. The absorption cross section of CFzBr at 262 nm a
The anisotropic ESR spectra of the CFsX-radical anions (X = Cl, Br, I) have been observed following 7 irradiation at 77 K of solid solutions containing up to 5 mole % of the CF3X parent compound in tetramethylsilane (TMS), neopentane, and 2-methyltetrahydrofuran. The resolution of the line component
We have compared the performance of CF31, CD31, and CH31 in an atomic iodine photodissoctition laser over the pressure range l-200 torr. At pressures below 5 torr, CD31 produces larger energy outputs, while above 5 torr CFJl gives supcrior performance. The crossing of the laser cnergf output versus