Figure 3: Scattering properties of Si nanoparticles with different crystallographic phases.
From: Laser printing of silicon nanoparticles with resonant optical electric and magnetic responses
Experimental (blue curves) and theoretical (red curves) scattering spectra, calculated using Mie theory, of spherical Si nanoparticles. The inserts demonstrate dark-field microscopic images of the corresponding Si nanoparticles. (a) Experimental scattering spectrum of laser-printed Si nanoparticle. The theoretical spectrum is calculated for an amorphous Si nanoparticle with diameter of 161 nm. (b) The printed Si nanoparticle is irradiated by a second laser pulse with low energy. The theoretical spectrum is calculated for a 70% crystalline Si nanoparticle with diameter of 166 nm. (c) The printed Si nanoparticle is irradiated by a second laser pulse with high pulse energy. The theoretical spectrum is calculated for a pure crystalline Si nanoparticle with diameter of 163 nm. The dielectric functions for amorphous and crystalline silicon are taken from ref. 44.
