De-gang Xu,Chang-ming Liu,Yu-ye Wang,Wei-peng Wang,Hao Jiang,Zhuo Zhang,Peng-xiang Liu,Jian-quan Yao.Numerical simulation of the thermal response of continuous-wave terahertz irradiated skin[J].Optoelectronics Letters,2013,9(1):73-76
Numerical simulation of the thermal response of continuous-wave terahertz irradiated skin
Author NameAffiliationE-mail
De-gang Xu Key Laboratory of Optoelectronic Information Technology Science, Ministry of Education of China, Institute of Laser and Optoelectronics, College of Precision Instruments and Optoelectronic Engineering, Tianjin University, Tianjin, 300072, China xudegang@tju.edu.cn 
Chang-ming Liu Key Laboratory of Optoelectronic Information Technology Science, Ministry of Education of China, Institute of Laser and Optoelectronics, College of Precision Instruments and Optoelectronic Engineering, Tianjin University, Tianjin, 300072, China  
Yu-ye Wang Key Laboratory of Optoelectronic Information Technology Science, Ministry of Education of China, Institute of Laser and Optoelectronics, College of Precision Instruments and Optoelectronic Engineering, Tianjin University, Tianjin, 300072, China  
Wei-peng Wang Key Laboratory of Optoelectronic Information Technology Science, Ministry of Education of China, Institute of Laser and Optoelectronics, College of Precision Instruments and Optoelectronic Engineering, Tianjin University, Tianjin, 300072, China  
Hao Jiang Key Laboratory of Optoelectronic Information Technology Science, Ministry of Education of China, Institute of Laser and Optoelectronics, College of Precision Instruments and Optoelectronic Engineering, Tianjin University, Tianjin, 300072, China  
Zhuo Zhang Key Laboratory of Optoelectronic Information Technology Science, Ministry of Education of China, Institute of Laser and Optoelectronics, College of Precision Instruments and Optoelectronic Engineering, Tianjin University, Tianjin, 300072, China  
Peng-xiang Liu Key Laboratory of Optoelectronic Information Technology Science, Ministry of Education of China, Institute of Laser and Optoelectronics, College of Precision Instruments and Optoelectronic Engineering, Tianjin University, Tianjin, 300072, China  
Jian-quan Yao Key Laboratory of Optoelectronic Information Technology Science, Ministry of Education of China, Institute of Laser and Optoelectronics, College of Precision Instruments and Optoelectronic Engineering, Tianjin University, Tianjin, 300072, China  
Abstract:
      We report a two-layer model to describe the thermal response of continuous-wave (CW) terahertz (THz) irradiated skin. Based on the Pennes bio-heat conduction equation, the finite element method (FEM) is utilized to calculate the temperature distribution. The THz wave with a Gaussian beam profile is used to simulate the photo-thermal mechanism. The simulation results show the dynamic process of temperature increasing with irradiation time and possible thermal damage. The factors which can affect temperature distribution, such as beam radius, incident power and THz frequency, are investigated. With a beam radius of 0.5 mm, the highest temperature increase is 3.7 K/mW.
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