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Title: Photoionization and photoelectric loading of barium ion traps

Abstract

Simple and effective techniques for loading barium ions into linear Paul traps are demonstrated. Two-step photoionization of neutral barium is achieved using a weak intercombination line (6s{sup 2} {sup 1}S{sub 0}{r_reversible}6s6p {sup 3}P{sub 1}, {lambda}=791 nm) followed by excitation above the ionization threshold using a nitrogen gas laser ({lambda}=337 nm). Isotopic selectivity is achieved by using a near Doppler-free geometry for excitation of the triplet 6s6p {sup 3}P{sub 1} state. Additionally, we report a particularly simple and efficient trap loading technique that employs an inexpensive uv epoxy curing lamp to generate photoelectrons.

Authors:
; ; ;  [1]
  1. School of Physics, Georgia Institute of Technology, Atlanta, Georgia 30332-0430 (United States)
Publication Date:
OSTI Identifier:
20982546
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 75; Journal Issue: 5; Other Information: DOI: 10.1103/PhysRevA.75.053404; (c) 2007 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
74 ATOMIC AND MOLECULAR PHYSICS; BARIUM; BARIUM IONS; DOPPLER EFFECT; ELECTRONIC STRUCTURE; EXCITATION; GAS LASERS; LIGHT BULBS; PHOTOIONIZATION; PHOTON-ATOM COLLISIONS; RADIATION PRESSURE; TRAPS; TRIPLETS; WEAK INTERACTIONS

Citation Formats

Steele, A. V., Churchill, L. R., Griffin, P. F., and Chapman, M. S. Photoionization and photoelectric loading of barium ion traps. United States: N. p., 2007. Web. doi:10.1103/PHYSREVA.75.053404.
Steele, A. V., Churchill, L. R., Griffin, P. F., & Chapman, M. S. Photoionization and photoelectric loading of barium ion traps. United States. doi:10.1103/PHYSREVA.75.053404.
Steele, A. V., Churchill, L. R., Griffin, P. F., and Chapman, M. S. Tue . "Photoionization and photoelectric loading of barium ion traps". United States. doi:10.1103/PHYSREVA.75.053404.
@article{osti_20982546,
title = {Photoionization and photoelectric loading of barium ion traps},
author = {Steele, A. V. and Churchill, L. R. and Griffin, P. F. and Chapman, M. S.},
abstractNote = {Simple and effective techniques for loading barium ions into linear Paul traps are demonstrated. Two-step photoionization of neutral barium is achieved using a weak intercombination line (6s{sup 2} {sup 1}S{sub 0}{r_reversible}6s6p {sup 3}P{sub 1}, {lambda}=791 nm) followed by excitation above the ionization threshold using a nitrogen gas laser ({lambda}=337 nm). Isotopic selectivity is achieved by using a near Doppler-free geometry for excitation of the triplet 6s6p {sup 3}P{sub 1} state. Additionally, we report a particularly simple and efficient trap loading technique that employs an inexpensive uv epoxy curing lamp to generate photoelectrons.},
doi = {10.1103/PHYSREVA.75.053404},
journal = {Physical Review. A},
number = 5,
volume = 75,
place = {United States},
year = {Tue May 15 00:00:00 EDT 2007},
month = {Tue May 15 00:00:00 EDT 2007}
}