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Volume 34 Issue 2
May  2010
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Numerical simulation of photo-thermolysis interaction of skin induced by fractional Er:YAG laser

  • Corresponding author: LI Zheng-jia, zhjli@mail.hust.edu.cn
  • Received Date: 2009-03-23
    Accepted Date: 2009-05-16
  • In order to calculate the pressure of the photo-thermolysis induced by the microscopic laser beam during fractional laser resurfacing, numerical simulation was performed by means of the mathematics model of the photo-thermolysis interaction between fractional Er:YAG and skin.The results are that the skin tissue can be evaporated other than carbonized immediately and a great pressure with very short pulse duration will appear, if the laser power density was controlled within a reasonable range.It is concluded that reasonable laser power density during fractional Er:YAG treatment can minimize the pain and the laser-induced thermal injury to the surrounding tissues during surgery.The computing results are consistent with the experiment results reported abroad.
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Numerical simulation of photo-thermolysis interaction of skin induced by fractional Er:YAG laser

    Corresponding author: LI Zheng-jia, zhjli@mail.hust.edu.cn
  • 1. Wuhan National Laboratory for Optoelectronics, College of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China

Abstract: In order to calculate the pressure of the photo-thermolysis induced by the microscopic laser beam during fractional laser resurfacing, numerical simulation was performed by means of the mathematics model of the photo-thermolysis interaction between fractional Er:YAG and skin.The results are that the skin tissue can be evaporated other than carbonized immediately and a great pressure with very short pulse duration will appear, if the laser power density was controlled within a reasonable range.It is concluded that reasonable laser power density during fractional Er:YAG treatment can minimize the pain and the laser-induced thermal injury to the surrounding tissues during surgery.The computing results are consistent with the experiment results reported abroad.

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