Prediction of skin temperature distribution in cosmetic laser surgery

Kuen Ting, Kuen Tasnn Chen, Cheng-Jen Cheng, Wen Shiung Lin, Cheng Ren Chang

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


The use of lasers in cosmetic surgery has increased dramatically in the past decade. To achieve minimal damage to tissues, the study of the temperature distribution of skin in laser irradiation is very important. The phenomenon of the thermal wave effect is significant due to the highly focused light energy of lasers in very a short time period. The conventional Pennes equation does not take the thermal wave effect into account, which the thermal relaxation time (T) is neglected, so it is not sufficient to solve instantaneous heating and cooling problem. The purpose of this study is to solve the thermal wave equation to determine the realistic temperature distribution during laser surgery. The analytic solutions of the thermal wave equation are compared with those of the Pennes equation. Moreover, comparisons are made between the results of the above equations and the results of temperature measurement using an infrared thermal image instrument. The thermal wave equation could likely to predict the skin temperature distribution in cosmetic laser surgery.

Original languageEnglish
Pages (from-to)361-367
Number of pages7
JournalJapanese Journal of Applied Physics
Issue number1
Publication statusPublished - Jan 18 2008
Externally publishedYes


  • Bloheat transfer
  • Cosmetic laser surgery
  • Pennes equation
  • Skin temperature
  • Thermal wave equation

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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