Numerical simulation of the thermal response of continuous-wave terahertz irradiated skin

作者：Xu De gang^*; Liu Chang ming; Wang Yu ye; Wang Wei peng; Jiang Hao; Zhang Zhuo; Liu Peng xiang; Yao Jian quan

来源：Optoelectronics Letters, 2013, 9(1): 73-76.

DOI：10.1007/s11801-013-2303-4

• Beam radius
• Bio-heat
• Conduction equations
• Continuous waves
• Continuous-wave terahertz
• Dynamic process
• Finite element method FEM
• Gaussian beam profile
• Highest temperature
• Incident power
• Irradiation time
• Photo-thermal
• Terahertz
• Thermal damage
• Thermal response
• THz frequencies
• THz waves
• Two layer model

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.

• 出版日期2013
• 单位天津大学