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A supersonic laser ablation beam source with narrow velocity spreads.
Aggarwal, P; Bethlem, H L; Boeschoten, A; Borschevsky, A; Esajas, K; Hao, Y; Hoekstra, S; Jungmann, K; Marshall, V R; Meijknecht, T B; Mooij, M C; Timmermans, R G E; Touwen, A; Ubachs, W; Willmann, L; Yin, Y; Zapara, A.
Afiliación
  • Aggarwal P; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25 9747AA, The Netherlands.
  • Bethlem HL; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25 9747AA, The Netherlands.
  • Boeschoten A; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25 9747AA, The Netherlands.
  • Borschevsky A; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25 9747AA, The Netherlands.
  • Esajas K; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25 9747AA, The Netherlands.
  • Hao Y; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25 9747AA, The Netherlands.
  • Hoekstra S; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25 9747AA, The Netherlands.
  • Jungmann K; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25 9747AA, The Netherlands.
  • Marshall VR; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25 9747AA, The Netherlands.
  • Meijknecht TB; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25 9747AA, The Netherlands.
  • Mooij MC; Nikhef, National Institute for Subatomic Physics, Science Park 105, 1098 XG Amsterdam, The Netherlands.
  • Timmermans RGE; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25 9747AA, The Netherlands.
  • Touwen A; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25 9747AA, The Netherlands.
  • Ubachs W; Department of Physics and Astronomy, and LaserLaB, Vrije Universiteit Amsterdam, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands.
  • Willmann L; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25 9747AA, The Netherlands.
  • Yin Y; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25 9747AA, The Netherlands.
  • Zapara A; Van Swinderen Institute for Particle Physics and Gravity, University of Groningen, Zernikelaan 25 9747AA, The Netherlands.
Rev Sci Instrum ; 92(3): 033202, 2021 Mar 01.
Article en En | MEDLINE | ID: mdl-33819994
ABSTRACT
A supersonic beam source for SrF and BaF molecules is constructed by combining the expansion of carrier gas (a mixture of 2% SF6 and 98% argon) from an Even-Lavie valve with laser ablation of a barium/strontium metal target at a repetition rate of 10 Hz. Molecular beams with a narrow translational velocity spread are produced at relative values of Δv/v = 0.053(11) and 0.054(9) for SrF and BaF, respectively. The relative velocity spread of the beams produced in our source is lower in comparison with the results from other metal fluoride beams produced in supersonic laser ablation sources. The rotational temperature of BaF is measured to be 3.5 K. The source produces 6 × 108 and 107 molecules per steradian per pulse in the X2Σ+ (ν = 0, N = 1) state of BaF and SrF molecules, respectively, a state amenable to Stark deceleration and laser cooling.
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Texto completo: 1 Bases de datos: MEDLINE Idioma: En Revista: Rev Sci Instrum Año: 2021 Tipo del documento: Article País de afiliación: Países Bajos
Texto completo
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XML
PubMed Links
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Texto completo: 1 Bases de datos: MEDLINE Idioma: En Revista: Rev Sci Instrum Año: 2021 Tipo del documento: Article País de afiliación: Países Bajos