Cs*He(n) exciplexes in solid 4He.
We present a theoretical and experimental study of the laser-induced formation process and of the emission spectra of Cs*He(n) exciplexes in the hcp and bcc phases of solid helium. Two different exciplex molecules are detected: a linear triatomic Cs*He2, which can exist in two electronic states: APi(1/2) and BPi(3/2), and a larger complex, where six or seven He atoms form a ring around a single cesium atom in the 6P(1/2) state. A theoretical model is presented, which allows the interpretation of the experimentally observed spectra.
Moroshkin
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P
Département de Physique, Université de Fribourg, Chemin du Musée 3, 1700 Fribourg, Switzerland. peter.moroshkin@unifr.ch
Hofer
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Nettels
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Ulzega
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S
Weis
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