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激光能用于烧灼、气化和切割生物组织。目前的激光器中,除了处于兰一绿波段的氩离子(Ar~+)激光外,属于红外波段的10.6微米的二氧化碳(CO_2)激光和1.06微米的掺钕钇铝石榴石(Nd~(3+):YAG)激光均具有若干外科手术特征。其中波长为10.6微米的中红外光辐射几乎可完全被生物组织所吸收,故二氧化碳激光在外科中应用最广泛。红外激光系不可见光,当它被光学装置传输到外科目标上时,在组织被破坏之前是看不见激光束作用点的位置的。这对精密外科手术带来困难,至于激光显微外科手术更
Laser energy is used to cauterize, vaporize, and cut biological tissue. In current lasers, in addition to the argon-ion (Ar ~ +) laser in the blue-green band, a 10.6-micron CO_2 laser in the infrared band and a 1.06-μm Nd- ): YAG) lasers have several surgical features. Among them, the mid-infrared light with the wavelength of 10.6 microns can be almost completely absorbed by the biological tissues, so the carbon dioxide laser is the most widely used in surgery. Infrared laser is invisible light, when it is transmitted to the surgical target by the optical device, it can not see the position of the laser beam effect point before the tissue is damaged. This is difficult for precision surgery, as laser microsurgery more