Evaporation Dynamics from Ag-Doped He Droplets upon Laser Excitation

Curtis F Jones; Charles Bernando; Swetha Erukala; Andrey F Vilesov

doi:10.1021/acs.jpca.9b02496

Evaporation Dynamics from Ag-Doped He Droplets upon Laser Excitation

J Phys Chem A. 2019 Jul 18;123(28):5859-5865. doi: 10.1021/acs.jpca.9b02496. Epub 2019 Jul 5.

Authors

Curtis F Jones¹, Charles Bernando², Swetha Erukala¹, Andrey F Vilesov^{1

2}

Affiliations

¹ Department of Chemistry , University of Southern California , Los Angeles , California 90089 , United States.
² Department of Physics and Astronomy , University of Southern California , Los Angeles , California 90089 , United States.

PMID: 31274308
DOI: 10.1021/acs.jpca.9b02496

Abstract

Silver clusters were assembled in helium droplets of different sizes ranging from 10⁴ to 10¹¹ atoms. The clusters were heated upon laser irradiation at 355 nm, and evaporation dynamics of He atoms were studied by quadrupole mass spectroscopy using signals from He⁺, He₂⁺, and He₄⁺ splitter ions. We found that for droplets containing less than 10⁷ atoms the laser irradiation leads to evaporation of He atoms. However, the laser irradiation leads to the breakup of the large droplets into smaller ones.