Open AccessProduction of cold molecular ions in superfluid helium droplets
Author(s) -
Akira Iguchi,
Hideki Otani,
Susumu Kuma,
H. Tanuma,
T. Azuma
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1412/23/232010
Subject(s) - superfluid helium 4 , ion , helium , storage ring , liquid helium , atomic physics , materials science , photoionization , helium gas , beam (structure) , physics , ionization , optics , quantum mechanics
Synopsis The capability of helium droplets to isolate cryogenic molecular ions at a temperature of 0.4 K is exploited to observe ultracold molecular processes in the RIKEN Cryogenic Electrostatic (RICE) storage ring. The development of a pulsed droplet beam consisting of extremely large helium droplets up to 10 11 atoms is a promising step to apply this unique and robust cooling method to a wide variety of molecular ions. Production of ions by photoionization of neutral species inside helium droplets will provide internally cold ions below the ring temperature of 4 K.