Research Article

Ultrashort Laser Pulse Heating of Nanoparticles: Comparison of Theoretical Approaches

Figure 4

Kinetics of heating and cooling of a gold nanoparticle by a nanosecond laser pulse of energy density 10 mJ/cm2 and duration 8 nanoseconds. Calculations have been made by using OTM. (a) Illustration of the time dynamics of laser heating of a 30-nm gold particle in different biological media: fat (dashed-dotted curve), blood (dashed curve), tumor (solid curve), and prostate (dotted curve). (b) Results of thermal calculations for a 35-nm gold particle: heating and cooling in the water surrounding medium at different heat transfer rates (solid curve), (dashed curve), and (dashed-dotted curve).
251718.fig.004a
(a)
251718.fig.004b
(b)