激光同原子能、半导体、计算机一起被誉为当代科学技术的四大发明．这不仅由于激光具有不寻常的优异特性，而且它在众多领域有着出众的应用．随着时间的推移和技术的不断成熟，它将成为２１世纪的重要技术，而在众多领域得到更加广泛的应用． 与人类健康密切相关的激光医学，正 Laser with atomic energy, semiconductors, computers together as the four major inventions of contemporary science and technology. This is not only due to the unusually outstanding characteristics of lasers, but also superior applications in many fields. With the passage of time and the constant maturity of technology, it will become an important technology in the 21st century and will be more widely used in many fields. Laser medicine closely related to human health, positive