We generate an atomic beam of titanium (Ti) using a “Ti-ball” Ti-sublimation pump, which is a common getter pump used in ultrahigh vacuum systems. We show that the sublimated atomic beam can be optically pumped into the metastable 3d3(4F)4s a5F5 state, which is the lower energy level in a cycling optical transition that can be used for laser cooling. We measure the atomic density and transverse and longitudinal velocity distributions of the beam through laser fluorescence spectroscopy. We find a metastable atomic flux density of 4.3(2) × 109 s−1 cm−2 with a mean forward velocity of 773(8) m/s at 2.55 cm directly downstream of the center of the Ti-ball. Owing to the details of optical pumping, the beam is highly collimated along the transverse axis parallel to the optical pumping beam and the flux density falls off as 1/r. We discuss how this source can be used to load atoms into a magneto-optical trap.
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November 2024
Research Article|
November 08 2024
An atomic beam of titanium for ultracold atom experiments
Jackson Schrott
;
Jackson Schrott
a)
(Data curation, Formal analysis, Investigation, Methodology, Software, Validation, Visualization, Writing – original draft, Writing – review & editing)
1
Department of Physics, University of California
, Berkeley, California 94720, USA
2
Challenge Institute for Quantum Computation, University of California
, Berkeley, California 94720, USA
a)Author to whom correspondence should be addressed: [email protected]
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Diego Novoa
;
Diego Novoa
(Data curation, Investigation, Methodology, Resources, Validation, Visualization, Writing – original draft)
1
Department of Physics, University of California
, Berkeley, California 94720, USA
2
Challenge Institute for Quantum Computation, University of California
, Berkeley, California 94720, USA
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Scott Eustice
;
Scott Eustice
(Conceptualization, Formal analysis, Methodology, Project administration, Supervision, Validation, Writing – review & editing)
1
Department of Physics, University of California
, Berkeley, California 94720, USA
2
Challenge Institute for Quantum Computation, University of California
, Berkeley, California 94720, USA
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Dan M. Stamper-Kurn
Dan M. Stamper-Kurn
(Conceptualization, Funding acquisition, Supervision, Validation, Writing – review & editing)
1
Department of Physics, University of California
, Berkeley, California 94720, USA
2
Challenge Institute for Quantum Computation, University of California
, Berkeley, California 94720, USA
3
Materials Science Division, Lawrence Berkeley National Laboratory
, Berkeley, California 94720, USA
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a)Author to whom correspondence should be addressed: [email protected]
Rev. Sci. Instrum. 95, 113201 (2024)
Article history
Received:
June 13 2024
Accepted:
October 11 2024
Connected Content
A companion article has been published:
An atomic beam of titanium produced from commercially available parts
Citation
Jackson Schrott, Diego Novoa, Scott Eustice, Dan M. Stamper-Kurn; An atomic beam of titanium for ultracold atom experiments. Rev. Sci. Instrum. 1 November 2024; 95 (11): 113201. https://doi.org/10.1063/5.0223352
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