title: Generation of neutral atomic beams utilizing photodetachment by high power diode laser stacks.
abstract: We demonstrate the use of high power diode laser stacks to photodetach fast hydrogen and carbon anions and produce ground term neutral atomic beams. We achieve photodetachment efficiencies of ∼7.4% for H(-) at a beam energy of 10 keV and ∼3.7% for C(-) at 28 keV. The diode laser systems used here operate at 975 nm and 808 nm, respectively, and provide high continuous power levels of up to 2 kW, without the need of additional enhancements like optical cavities. The alignment of the beams is straightforward and operation at constant power levels is very stable, while maintenance is minimal. We present a dedicated photodetachment setup that is suitable to efficiently neutralize the majority of stable negative ions in the periodic table.
authors.affiliation: Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
authors.forename: A P
authors.initials: AP
authors.lastname: O'Connor
authors.affiliation: Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
authors.forename: F
authors.initials: F
authors.lastname: Grussie
authors.affiliation: Columbia Astrophysics Laboratory, Columbia University, New York, New York 10027, USA.
authors.forename: H
authors.initials: H
authors.lastname: Bruhns
authors.affiliation: Columbia Astrophysics Laboratory, Columbia University, New York, New York 10027, USA.
authors.forename: N
authors.initials: N
authors.lastname: de Ruette
authors.affiliation: Dilas Diode Laser, Inc., Tucson, Arizona 85715, USA.
authors.forename: T P
authors.initials: TP
authors.lastname: Koenning
authors.affiliation: Columbia Astrophysics Laboratory, Columbia University, New York, New York 10027, USA.
authors.forename: K A
authors.initials: KA
authors.lastname: Miller
authors.affiliation: Columbia Astrophysics Laboratory, Columbia University, New York, New York 10027, USA.
authors.forename: D W
authors.initials: DW
authors.lastname: Savin
authors.affiliation: Columbia Astrophysics Laboratory, Columbia University, New York, New York 10027, USA.
authors.forename: J
authors.initials: J
authors.lastname: Stützel
authors.affiliation: Institute of Condensed Matter and Nanosciences, Université Catholique de Louvain, Louvain-la-Neuve B-1348, Belgium.
authors.forename: X
authors.initials: X
authors.lastname: Urbain
authors.affiliation: Max-Planck-Institut für Kernphysik, 69117 Heidelberg, Germany.
authors.forename: H
authors.initials: H
authors.lastname: Kreckel