A series of 2D in-plane plane wave particle-in-cell simulations find distinctive paths of laser-plasma instability evolution in OMEGA-scale implosions, depending on the initial electron temperature. At low temperatures, two-plasmon decay (TPD) dominates in both initial growth and the steady state. At high temperatures, the initial dominant modes switch to stimulated Raman scattering, but TPD still dominates a steady state characterized by cavitation and Langmuir turbulence. A hot electron scaling is also obtained from the simulations that, when combined with laser/plasma conditions from hydro simulations, can predict hot electron generation in implosions that do not employ smoothing-by-spectral-dispersion (SSD). It also shows that under the same laser/plasma conditions, SSD can reduce hot electron generation.

1.
V. A.
Smalyuk
,
D.
Shvarts
,
R.
Betti
,
J. A.
Delettrez
,
D. H.
Edgell
,
V. Y.
Glebov
,
V. N.
Goncharov
,
R. L.
McCrory
,
D. D.
Meyerhofer
,
P. B.
Radha
,
S. P.
Regan
,
T. C.
Sangster
,
W.
Seka
,
S.
Skupsky
,
C.
Stoeckl
,
B.
Yaakobi
,
J. A.
Frenje
,
C. K.
Li
,
R. D.
Petrasso
, and
F. H.
Séguin
, “
Role of hot-electron preheating in the compression of direct-drive imploding targets with cryogenic d 2 ablators
,”
Phys. Rev. Lett.
100
,
185005
(
2008
).
2.
V. N.
Goncharov
,
T. C.
Sangster
,
P. B.
Radha
,
R.
Betti
,
T. R.
Boehly
,
T. J. B.
Collins
,
R. S.
Craxton
,
J. A.
Delettrez
,
R.
Epstein
,
V. Y.
Glebov
,
S. X.
Hu
,
I. V.
Igumenshchev
,
J. P.
Knauer
,
S. J.
Loucks
,
J. A.
Marozas
,
F. J.
Marshall
,
R. L.
McCrory
,
P. W.
McKenty
,
D. D.
Meyerhofer
,
S. P.
Regan
,
W.
Seka
,
S.
Skupsky
,
V. A.
Smalyuk
,
J. M.
Soures
,
C.
Stoeckl
,
D.
Shvarts
,
J. A.
Frenje
,
R. D.
Petrasso
,
C. K.
Li
,
F.
Seguin
,
W.
Manheimer
, and
D. G.
Colombant
, “
Performance of direct-drive cryogenic targets on omega
,”
Phys. Plasmas
15
,
056310
(
2008
).
3.
R.
Betti
,
W.
Theobald
,
C. D.
Zhou
,
K. S.
Anderson
,
P. W.
McKenty
,
S.
Skupsky
,
D.
Shvarts
,
V. N.
Goncharov
,
J. A.
Delettrez
,
P. B.
Radha
,
T. C.
Sangster
,
C.
Stoeckl
, and
D. D.
Meyerhofer
, “
Shock ignition of thermonuclear fuel with high areal densities
,”
J. Phys.
112
,
022024
(
2008
).
4.
W. L.
Shang
,
R.
Betti
,
S. X.
Hu
,
K.
Woo
,
L.
Hao
,
C.
Ren
,
A. R.
Christopherson
,
A.
Bose
, and
W.
Theobald
, “
Electron shock ignition of inertial fusion targets
,”
Phys. Rev. Lett.
119
,
195001
(
2017
).
5.
W.
Seka
,
D.
Edgell
,
J.
Myatt
,
A.
Maximov
,
R.
Short
,
V.
Goncharov
, and
H.
Baldis
, “
Two-plasmon-decay instability in direct-drive inertial confinement fusion experiments
,”
Phys. Plasmas
16
,
052701
(
2009
).
6.
S.
Cao
,
D.
Patel
,
A.
Lees
,
C.
Stoeckl
,
M.
Rosenberg
,
V.
Gopalaswamy
,
H.
Wen
,
H.
Huang
,
A.
Shvydky
,
R.
Betti
et al, “
Predicting hot electron generation in inertial confinement fusion with particle-in-cell simulations
,”
Phys. Rev. E
106
,
055214
(
2022
).
7.
S.
Skupsky
,
R.
Short
,
T.
Kessler
,
R.
Craxton
,
S.
Letzring
, and
J.
Soures
, “
Improved laser-beam uniformity using the angular dispersion of frequency-modulated light
,”
J. Appl. Phys.
66
,
3456
3462
(
1989
).
8.
J. F.
Myatt
,
J. G.
Shaw
,
R. K.
Follett
,
D. H.
Edgell
,
D. H.
Froula
,
J. P.
Palastro
, and
V. N.
Goncharov
, “
LPSE: A 3-D wave-based model of cross-beam energy transfer in laser-irradiated plasmas
,”
J. Comput. Phys.
399
,
108916
(
2019
).
9.
L.
Hao
,
R.
Yan
,
J.
Li
,
W. D.
Liu
, and
C.
Ren
, “
Nonlinear fluid simulation study of stimulated Raman and Brillouin scatterings in shock ignition
,”
Phys. Plasmas
24
,
062709
(
2017
).
10.
Y.
Ji
,
C.-W.
Lian
,
Y.
Shi
,
R.
Yan
,
S.
Cao
,
C.
Ren
, and
J.
Zheng
, “
Generating axial magnetic fields via two plasmon decay driven by a twisted laser
,”
Phys. Rev. Res.
5
,
L022025
(
2023
).
11.
E.
Rovere
,
A.
Colaïtis
,
R.
Follett
, and
A.
Casner
, “
Hot electron scaling for two-plasmon decay in ICF plasmas
,”
Phys. Plasmas
30
,
042104
(
2023
).
12.
D.
Turnbull
,
A.
Maximov
,
D.
Cao
,
A.
Christopherson
,
D.
Edgell
,
R.
Follett
,
V.
Gopalaswamy
,
J.
Knauer
,
J.
Palastro
,
A.
Shvydky
et al, “
Impact of spatiotemporal smoothing on the two-plasmon–decay instability
,”
Phys. Plasmas
27
,
102710
(
2020
).
13.
C.
Xiao
,
Z.
Liu
,
C.
Zheng
, and
X.
He
, “
Competition between stimulated raman scattering and two-plasmon decay in inhomogeneous plasma
,”
Phys. Plasmas
23
,
022704
(
2016
).
14.
C.
Xiao
,
H.
Zhuo
,
Y.
Yin
,
Z.
Liu
,
C.
Zheng
, and
X.
He
, “
Transition from two-plasmon decay to stimulated raman scattering under ignition conditions
,”
Nucl. Fusion
60
,
016022
(
2019
).
15.
A. B.
Langdon
,
B. F.
Lasinski
, and
W. L.
Kruer
, “
Nonlinear saturation and recurrence of the two-plasmon decay instability
,”
Phys. Rev. Lett.
43
,
133
136
(
1979
).
16.
D.
DuBois
,
D.
Russell
, and
H. A.
Rose
, “
Saturation spectra of the two-plasmon decay instability
,”
Phys. Rev. Lett.
74
,
3983
(
1995
).
17.
J.
Zhang
,
J.
Myatt
,
R.
Short
,
A.
Maximov
,
H.
Vu
,
D.
DuBois
, and
D.
Russell
, “
Multiple beam two-plasmon decay: Linear threshold to nonlinear saturation in three dimensions
,”
Phys. Rev. Lett.
113
,
105001
(
2014
).
18.
J.
Li
,
R.
Yan
, and
C.
Ren
, “
Density modulation-induced absolute laser-plasma-instabilities: Simulations and theory
,”
Phys. Plasmas
24
,
052705
(
2017
)..
19.
R.
Yan
,
C.
Ren
,
J.
Li
,
A. V.
Maximov
,
W. B.
Mori
,
Z.-M.
Sheng
, and
F. S.
Tsung
, “
Generating energetic electrons through staged acceleration in the two-plasmon-decay instability in inertial confinement fusion
,”
Phys. Rev. Lett.
108
,
175002
(
2012
).
20.
S.
Weber
and
C.
Riconda
, “
Temperature dependence of parametric instabilities in the context of the shock-ignition approach to inertial confinement fusion
,”
High Power Laser Sci. Eng.
3
,
e6
(
2015
).
21.
R. A.
Fonseca
,
L. C. O.
Silva
,
F. S.
Tsung
,
V. K.
Decyk
,
W.
Lu
,
C.
Ren
,
W. B.
Mori
,
S.
Deng
,
S.
Lee
,
T. C.
Katsouleas
, and
J. C.
Adam
, “
Osiris: A three-dimensional, fully relativistic particle in cell code for modeling plasma based accelerators
,” in
International Conference on Computational Science
,
2002
.
22.
D.
DuBois
and
M.
Goldman
, “
Parametrically excited plasma fluctuations
,”
Phys. Rev.
164
,
207
(
1967
).
23.
C. S.
Liu
,
M. N.
Rosenbluth
, and
R. B.
White
, “
Raman and Brillouin scattering of electromagnetic waves in inhomogeneous plasmas
,”
Phys. Fluids
17
,
1211
1219
(
1974
).
24.
H.
Wen
,
A. V.
Maximov
,
R. W.
Short
,
J. F.
Myatt
,
R.
Yan
, and
C.
Ren
, “
Two-plasmon decay instability in inhomogeneous plasmas at oblique laser incidence
,”
Phys. Plasmas
23
,
092713
(
2016
).
25.
S.
Cao
,
R.
Yan
,
H.
Wen
,
J.
Li
, and
C.
Ren
, “
Cogeneration of hot electrons from multiple laser-plasma instabilities
,”
Phys. Rev. E
101
,
053205
(
2020
).
26.
M. N.
Rosenbluth
, “
Parametric instabilities in inhomogeneous media
,”
Phys. Rev. Lett.
29
,
565
567
(
1972
).
27.
M. N.
Rosenbluth
,
R. B.
White
, and
C. S.
Liu
, “
Temporal evolution of a three-wave parametric instability
,”
Phys. Rev. Lett.
31
,
1190
1193
(
1973
).
28.
C. S.
Liu
and
M. N.
Rosenbluth
, “
Parametric decay of electromagnetic waves into two plasmons and its consequences
,”
Phys. Fluids
19
,
967
971
(
1976
)..
29.
A.
Simon
,
R. W.
Short
,
E. A.
Williams
, and
T.
Dewandre
, “
On the inhomogeneous two–plasmon instability
,”
Phys. Fluids
26
,
3107
3118
(
1983
).
30.
J. F.
Drake
and
Y. C.
Lee
, “
Temporally growing Raman backscattering instabilities in an inhomogeneous plasma
,”
Phys. Rev. Lett.
31
,
1197
1200
(
1973
).
31.
J. F.
Drake
,
P. K.
Kaw
,
Y. C.
Lee
,
G.
Schmid
,
C. S.
Liu
, and
M. N.
Rosenbluth
, “
Parametric instabilities of electromagnetic waves in plasmas
,”
Phys. Fluids
17
,
778
785
(
1974
).
32.
D. W.
Forslund
,
J. M.
Kindel
, and
E. L.
Lindman
, “
Theory of stimulated scattering processes in laser-irradiated plasmas
,”
Phys. Fluids
18
,
1002
1016
(
1975
).
33.
W. L.
Kruer
,
The Physics of Laser Plasma Interactions
(
Westview Press
,
Boulder, Colorado
,
2003
).
34.
D.
DuBois
,
H. A.
Rose
, and
D.
Russell
, “
Saturation of radiation-induced parametric instabilities by excitation of Langmuir turbulence
,”
Phys. Scr.
1996
,
16
.
35.
R.
Yan
,
A. V.
Maximov
,
C.
Ren
, and
F. S.
Tsung
, “
Growth and saturation of convective modes of the two-plasmon decay instability in inertial confinement fusion
,”
Phys. Rev. Lett.
103
,
175002
(
2009
).
36.
G.
Doolen
,
D.
DuBois
, and
H. A.
Rose
, “
Nucleation of cavitons in strong Langmuir turbulence
,”
Phys. Rev. Lett.
54
,
804
(
1985
).
37.
D.
Russel
,
D.
DuBois
, and
H.
Rose
, “
Nucleation in two-dimensional Langmuir turbulence
,”
Phys Rev. Lett.
60
,
581
584
(
1988
).
38.
D.
Turnbull
,
A.
Maximov
,
D.
Edgell
,
W.
Seka
,
R.
Follett
,
J.
Palastro
,
D.
Cao
,
V.
Goncharov
,
C.
Stoeckl
, and
D.
Froula
, “
Anomalous absorption by the two-plasmon decay instability
,”
Phys. Rev. Lett.
124
,
185001
(
2020
).
39.
J. C.
Dainty
,
Laser Speckle and Related Phenomena
(
Springer Science and Business Media
,
2013
), Vol.
9
.
40.
D.
Froula
,
B.
Yaakobi
,
S.
Hu
,
P.
Chang
,
R.
Craxton
,
D.
Edgell
,
R.
Follett
,
D.
Michel
,
J.
Myatt
,
W.
Seka
et al, “
Saturation of the two-plasmon decay instability in long-scale-length plasmas relevant to direct-drive inertial confinement fusion
,”
Phys. Rev. Lett.
108
,
165003
(
2012
).
41.
H.
Vu
,
D.
DuBois
,
J.
Myatt
, and
D.
Russell
, “
Hot-electron production and suprathermal heat flux scaling with laser intensity from the two-plasmon-decay instability
,”
Phys. Plasmas
19
,
102703
(
2012
).
42.
S.
Hu
,
D.
Michel
,
D.
Edgell
,
D.
Froula
,
R.
Follett
,
V.
Goncharov
,
J.
Myatt
,
S.
Skupsky
, and
B.
Yaakobi
, “
Hydrodynamic simulations of long-scale-length two-plasmon-decay experiments at the omega laser facility
,”
Phys. Plasmas
20
,
032704
(
2013
).
43.
A.
Shvydky
and
H.
Huang
, private Communication (February-October,
2021
).
44.
J.
Delettrez
,
R.
Epstein
,
M. C.
Richardson
,
P. A.
Jaanimagi
, and
B. L.
Henke
, “
Effect of laser illumination nonuniformity on the analysis of time-resolved x-ray measurements in UV spherical transport experiments
,”
Phys. Rev. A
36
,
3926
3934
(
1987
).
45.
P.
Michel
,
L.
Divol
,
E.
Dewald
,
J.
Milovich
,
M.
Hohenberger
,
O.
Jones
,
L. B.
Hopkins
,
R.
Berger
,
W.
Kruer
, and
J.
Moody
, “
Multibeam stimulated raman scattering in inertial confinement fusion conditions
,”
Phys. Rev. Lett.
115
,
055003
(
2015
).
46.
H.
Wen
,
A. V.
Maximov
,
R.
Yan
,
J.
Li
,
C.
Ren
, and
F. S.
Tsung
, “
Three-dimensional particle-in-cell modeling of parametric instabilities near the quarter-critical density in plasmas
,”
Phys. Rev. E
100
,
041201
(
2019
).
47.
J.
Li
,
S. X.
Hu
, and
C.
Ren
, “
Effects of laser-plasma instabilities on hydro evolution in an omega-ep long-scale-length experiment
,”
Phys. Plasmas
24
,
022706
(
2017
).
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