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High-temperature continuous molecular beam source for aggressive elements: An example of zinc.

J Dudek1, K Puczka1, T Urbańczyk1

  • 1Smoluchowski Institute of Physics, Jagiellonian University, Łojasiewicza 11, 30-348 Krakow, Poland.

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|November 30, 2019
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Summary

A novel high-temperature source module overcomes challenges in creating zinc-containing van der Waals molecules for spectroscopy. This advancement enables detailed study of Zn2 and similar aggressive elements in molecular beams.

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Area of Science:

  • Physical Chemistry
  • Spectroscopy
  • Materials Science

Background:

  • Generating molecular beams of zinc (Zn2) and zinc-rare gas (ZnRg) complexes presents significant technical challenges.
  • High melting point and reactivity of zinc with stainless steel at elevated temperatures complicate source module design.

Purpose of the Study:

  • To design and test a high-temperature source module for supersonic molecular beams of aggressive elements, specifically for zinc.
  • To enable spectroscopic studies of van der Waals molecules containing zinc.

Main Methods:

  • Development of a specialized high-temperature source module for aggressive elements.
  • Testing the module in a laser-induced fluorescence excitation spectroscopy experiment.
  • Investigating bound-bound transitions in Zn2 using specific electronic states (b30u+43P1←X10g+(41S0)).

Main Results:

  • Successful expansion of Zn2 in a supersonic molecular beam using the new source module.
  • Demonstrated feasibility of the source module for spectroscopic applications.
  • The developed module is adaptable for other aggressive elements previously requiring laser vaporization.

Conclusions:

  • The new high-temperature source module effectively addresses the challenges of producing aggressive element molecular beams.
  • This technology facilitates advanced spectroscopic investigations of Zn2 and related species.
  • The source module offers a versatile alternative to laser vaporization for a range of aggressive elements.