FEM simulation of laser-generated ultrasonic waves in human skin in different epidermal thickness

Bo Zhou; Ren-Jun Zhan; Ning Shan; Jian Huang

doi:10.1117/12.2502446

23 October 2018 FEM simulation of laser-generated ultrasonic waves in human skin in different epidermal thickness

Bo Zhou, Ren-Jun Zhan, Ning Shan, Jian Huang

Proceedings Volume 10820, Optics in Health Care and Biomedical Optics VIII; 1082039 (2018) https://doi.org/10.1117/12.2502446
Event: SPIE/COS Photonics Asia, 2018, Beijing, China

Abstract

The Laser-Ultrasonic technique uses laser energy to generate ultrasound waves in various solids. In normal conditions, this technique is used to inspect large structures without destruction, but in military use, we hope get this destruction. Different races and different parts of the human body have different thickness of the epidermis. When the laser irradiates the human skin, different thickness of the skin will inevitably affect the results. In this paper, 10 laser pulses were simulated to irradiate human skin with different thickness of epidermis. The results show that the thinner the thickness of epidermis, the greater the temperature rise of skin, and the greater the displacement. When the thickness is more than 200 microns, the temperature change under the skin is not obvious, but the displacement direction changes and the displacement amplitude is smaller than the positive displacement.

Citation Download Citation

Bo Zhou, Ren-Jun Zhan, Ning Shan, and Jian Huang "FEM simulation of laser-generated ultrasonic waves in human skin in different epidermal thickness", Proc. SPIE 10820, Optics in Health Care and Biomedical Optics VIII, 1082039 (23 October 2018); https://doi.org/10.1117/12.2502446

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