Optics and Photonics Society of Iran

In this paper the effect of a continuous semiconductor laser with a wavelength of 532 nm on spherical gold nanoparticles in different sizes, immersed in different surrounding medium, whether liquid or gas has been studied theoretically. To obtain the absorption and scattering cross sections, the exact solution of Mie theory equations was used by a Matlab code. In addition, in order to calculate the maximum temperature increase of nanoparticles, the diffusion equations was solved analytically, using boundary condition and suitable approximations. Then the maximum temperature of nanoparticles immersed in some common liquid and gas materials was calculated and discussed.