An article to let you understand the function and principle of laser
Since the birth of the world's first functional laser in 1960, after half a century of clinical development, laser theory and technology have been gradually improved. At present, blue laser pointer has become an important weapon in the field of skin disease treatment. Therefore, for clinical dermatologists, understanding the principles of laser action is the prerequisite for all laser treatments. These are actually lasers of the same power, and these three types of lasers all pose the same eye hazard when observing the beam. If you see a bright blue or violet laser beam, its brightness is similar to that of a green laser, you can safely assume that the intensity of the blue/violet laser is much greater. Direct observation of the beam will cause serious and immediate damage to the eyes damage.
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The laser has good monochromaticity and a clear wavelength value. The laser medium determines the wavelength of the emitted light. In terms of clinical significance, the wavelength determines the nature of the interaction between the laser and the tissue. Different tissues (color bases) have different absorption coefficients for light of different wavelengths, and the penetration depth of light of different wavelengths is also different. Therefore, the treatment needs to choose a suitable laser according to the type and depth of the color base.
2021-10-15 08:36:58
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