Mixing of the Cd 5 3P fine-structure states by Hg collisions

✍ Scribed by J. Supronowicz; M.J. Hinek; J.B. Atkinson; L. Krause

• Book ID: 103030141
• Publisher: Elsevier Science
• Year: 1993
• Tongue: English
• Weight: 563 KB
• Volume: 213
• Category: Article
• ISSN: 0009-2614
• DOI: 10.1016/0009-2614(93)85133-9

✦ Synopsis

5 'P line-structure mixing in Cd, induced in collisions with ground-state Hg atoms, was investigated by methods of LIF with time resolution. A quartz vapor-cell containing an Hg-Cd mixture was irradiated with consecutive pump and probe laser pulses. The pump pulses (326.1 nm) produced a population of Cd 5 3P, atoms whose collisions with Hg atoms caused the distribution of population among the 3P fs states. These were probed with laser radiation exciting the 6 %, state which emitted fluorescence whose relative intensity was recorded in relation to the pump-probe delay, reflecting the time evolution of the respective 'PJ populations. The experiments which were carried out over a range of temperatures and Cd-Hg densities, yielded the cross sections for the fs mixing collisions and the rate constant for the HgCd exciplex formation.