Characterization of laser-driven ultrafast shockless compression using gold targets
K. Miyanishii
(1)
,
N. Ozaki
(1, 2)
,
E. Brambrink
(3)
,
N. Amadou
(3)
,
A. Benuzzi-Mounaix
(3, 4)
,
R. Cauble
(5)
,
A. Diziere
(3)
,
F. Guyot
(6)
,
M. Koenig
(3, 7)
,
Guillaume Morard
(6)
,
T. de Resseguier
(8)
,
A. Ravasio
(3)
,
R. Smith
(5)
,
Y. Tange
(9)
,
T. Vinci
(3)
,
H. G. Wei
(10)
,
R. Kodama
(1, 2)
1
Graduate School of Engineering, Osaka University
2 Photon Pioneers Center, Osaka University
3 LULI - Laboratoire pour l'utilisation des lasers intenses
4 LUTH (UMR_8102) - Laboratoire Univers et Théories
5 LLNL - Lawrence Livermore National Laboratory
6 IMPMC - Institut de minéralogie, de physique des matériaux et de cosmochimie
7 Institute for Academic Initiatives
8 PPrime [Poitiers] - Institut Pprime [UPR 3346]
9 Geodynamics Research Center [Ehime]
10 National Astronomical Observatories, Chinese Academy of Sciences
2 Photon Pioneers Center, Osaka University
3 LULI - Laboratoire pour l'utilisation des lasers intenses
4 LUTH (UMR_8102) - Laboratoire Univers et Théories
5 LLNL - Lawrence Livermore National Laboratory
6 IMPMC - Institut de minéralogie, de physique des matériaux et de cosmochimie
7 Institute for Academic Initiatives
8 PPrime [Poitiers] - Institut Pprime [UPR 3346]
9 Geodynamics Research Center [Ehime]
10 National Astronomical Observatories, Chinese Academy of Sciences
N. Ozaki
- Fonction : Auteur
- PersonId : 764657
- ORCID : 0000-0002-7320-9871
N. Amadou
- Fonction : Auteur
- PersonId : 771403
- ORCID : 0000-0001-5559-3788
A. Benuzzi-Mounaix
- Fonction : Auteur
- PersonId : 742150
- IdHAL : alessandra-benuzzi-mounaix
- ORCID : 0000-0001-6248-9479
F. Guyot
- Fonction : Auteur
- PersonId : 744233
- IdHAL : francois-guyot
- ORCID : 0000-0003-4622-2218
- IdRef : 181411091
Guillaume Morard
- Fonction : Auteur
- PersonId : 185055
- IdHAL : guillaume-morard
- ORCID : 0000-0002-4225-0767
- IdRef : 114491100
A. Ravasio
- Fonction : Auteur
- PersonId : 741315
- IdHAL : alessandra-ravasio
- ORCID : 0000-0002-2077-6493
Y. Tange
- Fonction : Auteur
- PersonId : 772102
- ORCID : 0000-0001-9579-0786
T. Vinci
- Fonction : Auteur
- PersonId : 759878
- ORCID : 0000-0002-1595-1752
Résumé
Indirect laser-driven shockless compression experiments on gold targets were performed to characterize pressure loading processes and target states. Free surface velocities of the gold target under ramped pressure loading were measured using line-imaging velocity interferometers. From the velocity data and the equation of state, the maximum pressure and strain rate attained under compression were estimated to be 50 GPa and 4 107 s 1, respectively. Optical reflectivity was measured simultaneously with the velocity, the result suggesting no significant or unexpected temperature increases in the ultrafast shockless compression process