Abstract
Cutting of tissue in microsurgery with lasers has to be performed at a high-absorption wavelength, otherwise thermal damage to the neighboring tissue can occur; 3-μm radiation is suitable for medical uses because it generates only limited thermal effects in living tissue. Furthermore, it is eye-safe. To cut tissue by evaporation a minimum energy of ~ 2 mJ/pulse is necessary.1 It is easy to reach this energy with an Er laser,2 but it is difficult to attain an acceptable cutting speed.
© 1988 Optical Society of America
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