Abstract
We observed broadband emission spectra of Cs-He excimers in cold He gas when Cs atoms were excited to the states. We calculated the emission spectrum from each vibrational state of using Pascale’s semiempirical Cs-He potential energy curves [J. Pascale, Phys. Rev. A 632 (1983)], and compared the results with the observed spectra. From the measured spectral shape, we estimated the relative populations of the vibrational states of at various He gas densities, and estimated the predissociation rate of in the state. Moreover, a broadband emission spectrum of was also observed, which was compared with that observed in liquid He.
- Received 27 April 2002
DOI:https://doi.org/10.1103/PhysRevA.66.042505
©2002 American Physical Society