Laser making technique and prospect of ultrafine particle

Ultrafine particle (UFP) is a new material,which developed rapidly in recent years.The UFP has many special properties,and will play an important role in science and technology facing the 21st century.In the present paper,the principles,devices,characteristics and present situation of producing ultrafine particles by the laser vapor-phase reaction,the laser heating gas-evaporation,the infrared multiple-photon decomposition,and so on,are reviewed.The laser making technology of ultrafine particles is expected to have the possibility of wide applications in the future.