[en] Smooth and highly spherical capsule fabrication methods, the ablation-controlled functional surface materials and very low density porous materials, which are used for the laser fusion target, are described. The plastic capsule is made of poly(α-methylstyrene) (PAMS), polymethyl methacrylate and polyimide by a density-matched emulsion method. Glow Discharge Polymer (GDP) capsule was made by coating method using PAMS as mandrel. Very low temperature deuterium capsule is made by β-heating method, plasma heating method, IR-heating method and foam-cryo method. Cone guide type laser fusion target was observed by adding heat to plasma until 10⁷ degree. Porous plastic for laser target is made by three methods such as volatile solvent mixing method, freeze de aeration method and aerogel method. A nanometer level precise target is prepared by monolayer film adhesion method. (S.Y.)