Simulation of nanosecond laser-induced thermal dynamics of hollow gold nanoshells for hyperthermia therapy

Thermal Kinetics of Gold Nanosphere under a Burst of Femtosecond Laser

“…Ali et al, in Ref. [15], resolved the TTM in addition to the heat diffusion equation for hollow gold nanoshells irradiated with N = 5 sub-pulses of τ p = 5 ns and separated by 21 ns; they noticed a temperature rise of 0.5 K/sub-pulse because the separation time was smaller than the total relaxation time of the AuNp.…”

“…Then, the heat is transferred from particle into the surrounding medium through phonon-phonon coupling in a few ns [9], meaning the thermalization phase is very short. The electron and the lattice subsystems can be characterized by their temperatures (T e , T L ), which are computed using the two-temperature diffusion model (TTM) [10][11][12][13][14][15]. In the TTM, we included the energy dissipation due to the heat conduction through the AuNp/water interface.…”

“…The repetition rate is fixe much longer than the time of the electrons' relaxation, which occurs before the coming the next sub-pulse; this is why in the Figure3binset, the maximum of Te seems the sam The thermal accumulation is observed in the la ice and the AuNp/water interface, with maximal temperature of TL = 85 K (rate of increase of 17 K/sub-pulse) and Tws = 55 K (5 K/sub-pulse). Ali et al, in Ref [15],. resolved the TTM in addition to the heat diffusio equation for hollow gold nanoshells irradiated with N = 5 sub-pulses of τp = 5 ns an separated by 21 ns; they noticed a temperature rise of 0.5 K/sub-pulse because the sep…”