Two-step predissociation of NaK
We use two-step excitation to measure predissociation rates and to map out high-lying molecular states of NaK. A single-mode ring dye laser is set at a particular 2 (A) {sup 1}{Sigma}{sup +} (v{prime}, J{prime}) {l_arrow} 1 (X){sup 1}{Sigma}{sup +}(v{double_prime}, J{double_prime}) transition. Another single-mode laser (Ti-sapphire) is then used in the second step to excite the molecule, now in the A state, to a higher predissociating state. The predissociation is monitored by the atomic potassium emission on the 3D{sub 3/2} {yields} 4P{sub {1/2}} transition while bound state radiative processes are detected by total fluorescence and laser absorption methods. Absolute predissociation rates are determined by Doppler-free linewidths. By scanning the Ti-sapphire laser, different ro-vibrational states can be reached allowing us to map out and identify the states, involved in the predissociation process.
- OSTI ID:
- 281204
- Report Number(s):
- CONF-9305421--
- Journal Information:
- Bulletin of the American Physical Society, Journal Name: Bulletin of the American Physical Society Journal Issue: 3 Vol. 38; ISSN BAPSA6; ISSN 0003-0503
- Country of Publication:
- United States
- Language:
- English
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