Superfluid Helium Droplets: A Uniquely Cold Nanomatrix for Molecules and Molecular Complexes

ChemInform ◽  
2004 ◽  
Vol 35 (27) ◽  
Author(s):  
J. Peter Toennies ◽  
Andrey F. Vilesov
Keyword(s):  
Superfluid Helium ◽  
Molecular Complexes ◽  
Helium Droplets

scholarly journals Electron diffraction of CS2 nanoclusters embedded in superfluid helium droplets

2020 ◽  
Vol 152 (22) ◽  
pp. 224306
Author(s):  
Jie Zhang ◽  
Stephen D. Bradford ◽  
Wei Kong ◽  
Chengzhu Zhang ◽  
Lan Xue
Keyword(s):  
Electron Diffraction ◽  
Superfluid Helium ◽  
Helium Droplets

scholarly journals Production of cold molecular ions in superfluid helium droplets

2020 ◽  
Vol 1412 ◽  
pp. 232010
Author(s):  
A Iguchi ◽  
H Otani ◽  
S Kuma ◽  
H Tanuma ◽  
T Azuma
Keyword(s):  
Superfluid Helium ◽  
Molecular Ions ◽  
Helium Droplets

scholarly journals Density of superfluid helium droplets

1998 ◽  
Vol 58 (6) ◽  
pp. 3341-3350 ◽  
Author(s):  
Jan Harms ◽  
J. Peter Toennies ◽  
Franco Dalfovo
Keyword(s):  
Superfluid Helium ◽  
Helium Droplets

scholarly journals Vortex arrays in nanoscopic superfluid helium droplets

2015 ◽  
Vol 91 (10) ◽  
Author(s):  
Francesco Ancilotto ◽  
Martí Pi ◽  
Manuel Barranco
Keyword(s):  
Superfluid Helium ◽  
Helium Droplets

scholarly journals Electron Diffraction of Ionic Argon Nanoclusters Embedded in Superfluid Helium Droplets

2021 ◽  
pp. 9644-9650
Author(s):  
Jie Zhang ◽  
Marisol Trejo ◽  
Stephen D. Bradford ◽  
Lei Lei ◽  
Wei Kong
Keyword(s):  
Electron Diffraction ◽  
Superfluid Helium ◽  
Helium Droplets

scholarly journals Imaging Quantum Vortices in Superfluid Helium Droplets

2019 ◽  
Vol 70 (1) ◽  
pp. 173-198 ◽  
Author(s):  
Oliver Gessner ◽  
Andrey F. Vilesov
Keyword(s):  
Superfluid Helium ◽  
Extreme Ultraviolet ◽  
Helium Droplets ◽  
Diverse Range ◽  
Quantum Vortices ◽  
X Ray ◽  
High Order Harmonic ◽  
In Situ Detection ◽  
New Applications ◽  
Micrometer Scale

Free superfluid helium droplets constitute a versatile medium for a diverse range of experiments in physics and chemistry that extend from studies of the fundamental laws of superfluid motion to the synthesis of novel nanomaterials. In particular, the emergence of quantum vortices in rotating helium droplets is one of the most dramatic hallmarks of superfluidity and gives detailed access to the wave function describing the quantum liquid. This review provides an introduction to quantum vorticity in helium droplets, followed by a historical account of experiments on vortex visualization in bulk superfluid helium and a more detailed discussion of recent advances in the study of the rotational motion of isolated, nano- to micrometer-scale superfluid helium droplets. Ultrafast X-ray and extreme ultraviolet scattering techniques enabled by X-ray free-electron lasers and high-order harmonic generation in particular have facilitated the in situ detection of droplet shapes and the imaging of vortex structures inside individual, isolated droplets. New applications of helium droplets ranging from studies of quantum phase separations to mechanisms of low-temperature aggregation are discussed.

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