Abstract
The emission spectrum of the A(1) Pi-X(1) Sigma(+) system of AlH, excited in a hollow-cathode discharge lamp, has been observed at high resolution with a Fourier-transform spectrometer. The rotational lines in the 0-0 and the 1-1 bands have been measured with a precision of +/-0.001 cm(-1). The present measurements provide a considerable improvement over the previous data of Zeeman and Ritter [Can. J. Phys. 32, 555 (1954)]. The present data, combined with the previous high-resolution measurements of the 1-0 vibration-rotation band by White et al. [J. Chem. Phys. 99, 8371 (1993)] and the J = 1-0 pure rotational line of Goto and Saito [Astrophys. J. 452, L147 (1995)] have been used to determine improved constants for the A(1) Pi state. (C) 1996 Optical Society of America
| Original language | English |
|---|---|
| Pages (from-to) | 2879-2883 |
| Number of pages | 5 |
| Journal | Applied Optics |
| Volume | 35 |
| Issue number | 16 |
| Publication status | Published - 1 Jun 1996 |
Keywords
- ISOLATED ALUMINUM ATOMS
- PHOTOCHEMICAL-REACTIONS
- ELECTRIC PROPERTIES
- LASER SPECTROSCOPY
- MOLECULAR-HYDROGEN
- POTENTIAL CURVES
- INFRARED-SPECTRA
- ALH
- STATE
- AIH