Condensed Matter Physics, 2017, vol. 20, No. 4, 43703
Estimation of electron temperature in heated metallic nanoparticle
(Bogolyubov Institute for Theoretical Physics of the National Academy of Sciences of Ukraine, 14-b Metrologichna St., 03680 Kyiv, Ukraine)
A method is proposed for determining the temperature of hot electrons in a metallic nanoparticle embedded in a dielectric matrix under ultrashort laser pulses irradiation. The amplitude and power
of the longitudinal spherical acoustic oscillations as functions of density and elastic properties of the medium, the laser pulse duration, the electron temperature, radii of particles, and the electron-phonon
coupling constant are obtained. The efficiency of the electron energy transfer from heated noble nanoparticles to a surrounding environment is estimated for different electron temperatures.
electron temperature, metal nanoparticle, ultrashort laser pulses
78.67.Bf, 68.49.Jk, 73.23.-b, 52.25.Os, 36.40.Vz