Laser Solutions (한국레이저가공학회지)

Korean Society of Laser Processing (한국레이저가공학회)
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Analysis of Thermal Relaxation Time of Tissues Subject to Pulsed Laser Irradiation

초단파 레이저 조사시 티슈 열완화 시간 분석

  • Kim, Kyung-Han (Dept. of High Density Energy Beam processing, Korea Institute of Machinery and Materials) ;
  • Lee, Jae-Hoon (Dept. of High Density Energy Beam processing, Korea Institute of Machinery and Materials) ;
  • Suh, Jeong (Dept. of High Density Energy Beam processing, Korea Institute of Machinery and Materials)
  • 김경한 (광응용 생산 기계연구실, 한국 기계 연구원) ;
  • 이제훈 (광응용 생산 기계연구실, 한국 기계 연구원) ;
  • 서정 (광응용 생산 기계연구실, 한국 기계 연구원)
  • Published : 2009.06.30
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Abstract

Two methodologies for predicting thermal relaxation time of tissue subjected to pulsed laser irradiation is introduced by the calculation the optical penetration depth and by the investigation of the temperature diffusion behavior. First approach is that both x-axial and y-axial thermal relaxation times are predicted and they are superposed to achieve the thermal relaxation time (${\tau}_1$) for two-dimensional square tissue model. Another approach to achieve thermal relaxation time (${\tau}_2$) is measuring the time required for local temperature drop until $e^{-1}$ of the maximum laser induced heating.

Keywords