Time dependent temperature field in metal illuminated by laser pulse

Light-material interaction is followed by various effects, mostly frequently thermal ones. In laser processing thermal effects are of great importance. In spite of a very complex description of laser processing most models originate from the same source - the temperature field, which originates during light absorption in the specimen. In this paper we present a general solution for the equation, describing the time dependent temperature field in the body heated out of a circularly symmetric source. The heat source is determined by the single mode laser pulse bulk absorption. In addition, we present some limitations of general solution that simplify Green's function for the temperature field.