Generation of neutral atomic beams utilizing photodetachment by high power diode laser stacks

被引：14

作者：

O'Connor, A. P. ^{[1
]}

Grussie, F. ^{[1
]}

Bruhns, H. ^{[2
]}

de Ruette, N. ^{[2
]}

Koenning, T. P. ^{[3
]}

Miller, K. A. ^{[2
]}

Savin, D. W. ^{[2
]}

Stuetzel, J. ^{[2
]}

Urbain, X. ^{[4
]}

Kreckel, H. ^{[1
]}

机构：

[1] Max Planck Inst Kernphys, D-69117 Heidelberg, Germany

[2] Columbia Univ, Columbia Astrophys Lab, New York, NY 10027 USA

[3] Dilas Diode Laser Inc, Tucson, AZ 85715 USA

[4] Catholic Univ Louvain, Inst Condensed Matter & Nanosci, B-1348 Louvain La Neuve, Belgium

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2015年 / 86卷 / 11期

基金：

欧洲研究理事会;

关键词：

NEGATIVE-IONS; HYDROGEN; DYNAMICS; STATES;

D O I：

10.1063/1.4934873

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

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 similar to 7.4% for H-at a beam energy of 10 keV and similar to 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. (C) 2015 AIP Publishing LLC.

引用

页数：9

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