Finite-element simulation of effects of laser parameters on laser generated ultrasonic waves in human skin

Author

Bazzazi, Farnaz ; Sadr, A.

fYear

2010

fDate

Nov. 30 2010-Dec. 2 2010

Firstpage

1

Lastpage

4

Abstract

Recently laser generated ultrasound has been excessively exploited for characterizing multilayer materials and one of its increasing usage in medicine is recognition of skin properties. Regarding some optical properties of human skin and using finite element method (FEM) and ABAQUS, we represent a numerical analysis of coupled thermal and mechanical field and simulate the surface acoustic waves (SAWs) resulting from pulse laser irradiation within the assumed three-layered model. The simulations show that SAWs are sensitive to changes in laser parameters such as pulse rise time and radius of laser spot and will be able to be utilized to quantitavely extract the structural features of skin such as thickness, elasticity, etc and choosing best experimental parameters of laser.

Keywords

biomechanics; biomedical ultrasonics; cellular biophysics; elasticity; finite element analysis; laser applications in medicine; multilayers; skin; surface acoustic waves; ultrasonic waves; FEM; SAW; elasticity; finite-element simulation; human skin; laser generated ultrasonic waves; laser parameter effects; laser spot radius; multilayer materials; numerical analysis; optical properties; pulse laser irradiation; surface acoustic waves; three-layered model; Dermis; Epidermis; Lasers; Numerical models; Optical surface waves; Surface waves; Finite element method; Human skin; Laser ultrasound;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Engineering and Sciences (IECBES), 2010 IEEE EMBS Conference on

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-4244-7599-5

Type

conf

DOI

10.1109/IECBES.2010.5742100

Filename

5742100