PHOTO INDUCED COLLISIONS WITH LASER COOLED HE-ASTERISK ATOMS

Authors
MASTWIJK HC VANRIJNBACH M THOMSEN JW VANDERSTRATEN P NIEHAUS A
Citation
Hc. Mastwijk et al., PHOTO INDUCED COLLISIONS WITH LASER COOLED HE-ASTERISK ATOMS, The European Physical Journal. D: Atomic, molecular and optical physics, 4(2), 1998, pp. 131-137
Citations number
17
Categorie Soggetti
Physics, Atomic, Molecular & Chemical
Journal title
The European Physical Journal. D: Atomic, molecular and optical physics → ACNP
ISSN journal
14346060
Volume
4
Issue
2
Year of publication
1998
Pages
131 - 137
Database
ISI
SICI code
1434-6060(1998)4:2<131:PICWLC>2.0.ZU;2-N
Abstract
This paper presents an experimental investigation of cold collisions b etween metastable helium atoms in an optical trap at 1 mK. Penning (PI ) and associative (AI) ionization reactions are distinguished using a mass spectrometer and studied under influence of near resonant laser l ight. Dramatic enhancement, by more than a factor 15, of the ion rate is observed when the laser is tuned close to resonance. Experimental f indings are well-described, on an absolute scale, by model predictions .