Brillouin Spectroscopy of Metastable Superfluid Helium-4 - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Physical Review Letters Année : 2022

Brillouin Spectroscopy of Metastable Superfluid Helium-4

Résumé

We report measurements of the Brillouin frequencies of acoustically driven metastable states of superfluid 4 He at T ∼ 1 K. This is done using a stimulated Brillouin gain spectrometer operating on a confined spatio-temporal domain (∼ 40 µm, 200 ns). Our work questions previous experimental results regarding the metastable states of liquid 4 He and suggests that thermal effects or vortices can play a significant role in the cavitation process. Thanks to our time-resolved measurements, we also find that it is possible to probe metastable superfluid 4 He beyond the commonly defined cavitation threshold.
Fichier principal
Vignette du fichier
Postprint_PRL_2022_HAL.pdf (451.72 Ko) Télécharger le fichier
Postprint_PRL_SP_2022_HAL.pdf (270.94 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)

Dates et versions

hal-04004124 , version 1 (24-02-2023)

Identifiants

Citer

Lionel Djadaojee, Jules Grucker. Brillouin Spectroscopy of Metastable Superfluid Helium-4. Physical Review Letters, 2022, 129 (12), pp.125301. ⟨10.1103/PhysRevLett.129.125301⟩. ⟨hal-04004124⟩
18 Consultations
51 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More