Zhantao Lu, Xinglong Xie, Xiao Liang, Meizhi Sun, Ping Zhu, Xuejie Zhang, Linjun Li, Hao Xue, Guoli Zhang, Rashid Ul Haq, Dongjun Zhang, Jianqiang Zhu. Effect of laser wavelength on growth of ablative Rayleigh–Taylor instability in inertial confinement fusion[J]. Matter and Radiation at Extremes, 2025, 10(2): 027403
- Matter and Radiation at Extremes
- Vol. 10, Issue 2, 027403 (2025)
Fig. 1. (a) Initial profiles of ρ (solid line), T (dot-dashed line), and v z (dashed line) along the z axis. (b) Simulation setup for initial density profile.
Fig. 2. Profiles of ρ along the z axis after 4 ns of laser action for different wavelengths and adjusted intensity.
Fig. 3. Relative coupling efficiency between laser and kinetic energy of implosion fluid for different wavelengths.
Fig. 4. ARTI perturbations near the ablation surface after 4 ns of laser action for k p = 2π /12.8 μ m−1 and different wavelengths λ : (a) 351 nm; (b) 150 nm; (c) 100 nm; (d) 65 nm; (e) 40 nm; (f) 30 nm.
Fig. 5. Average ARTI growth rates γ within 4 ns for k p = 2π /12.8 μ m−1 and different laser wavelengths.
Fig. 6. Variation of main hydrodynamic parameters with laser action time at five representative wavelengths (351, 100, 65, 40, and 30 nm): (a) g ; (b) L m ; (c) V a ; (d) conduction layer thickness L c ; (e) A T ; (f) theoretical ARTI growth rate.
Fig. 7. Variations with laser action time of simulated perturbation amplitude for different laser frequencies (symbols) and of perturbation amplitude calculated from the theoretical ARTI growth rate (dashed line).
Fig. 8. (a) Plasma density contours and direction of laser (red arrow) in the perturbation region. (b) and (c) Distributions of laser energy deposition after 3 ns of laser action at λ = 30 and 65 nm, respectively.
Fig. 9. Temperature contours of plasma after 4 ns of laser action at λ = 351 nm.
Fig. 10. Average ARTI growth rate γ within 4 ns at different laser wavelengths for I b = 2 × 1014 W/cm2 and 4 × 1014 W/cm2.
Fig. 11. Variation of average ARTI growth rate γ within 4 ns with laser wavelength for k p = 2π /25.6 and 2π /51.2 μ m−1.
Fig. 12. Density contours and perturbation region length h of plasma after 4 ns of laser action at λ = 351 nm for (a) k p = 2π /25.6 μ m−1 and (b) k p = 2π /51.2 μ m−1.
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20