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Applied Optics

Applied Optics


  • Editor: Joseph N. Mait
  • Vol. 52, Iss. 28 — Oct. 1, 2013
  • pp: 6896–6905

Experimental and numerical studies for nondestructive evaluation of human enamel using laser ultrasonic technique

Kaihua Sun, Ling Yuan, Zhonghua Shen, Qingping Zhu, Jian Lu, and Xiaowu Ni  »View Author Affiliations

Applied Optics, Vol. 52, Issue 28, pp. 6896-6905 (2013)

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In this paper, a nondestructive laser ultrasonic technique is used to generate and detect broadband surface acoustic waves (SAWs) on human teeth with different demineralization treatment. A scanning laser line-source technique is used to generate a series of SAW signals for obtaining the dispersion spectrum through a two-dimensional fast Fourier translation method. The experimental dispersion curves of SAWs are studied for evaluating the elastic properties of the sound tooth and carious tooth. The propagation and dispersion of SAWs in human teeth are also been studied using the finite element method. Results from numerical simulation and experiment are compared and discussed, and the elastic properties of teeth with different conditions are evaluated by combining the simulation and experimental results.

© 2013 Optical Society of America

OCIS Codes
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(170.7170) Medical optics and biotechnology : Ultrasound
(240.6690) Optics at surfaces : Surface waves
(280.3375) Remote sensing and sensors : Laser induced ultrasonics

ToC Category:
Medical Optics and Biotechnology

Original Manuscript: May 21, 2013
Revised Manuscript: August 23, 2013
Manuscript Accepted: August 25, 2013
Published: September 25, 2013

Kaihua Sun, Ling Yuan, Zhonghua Shen, Qingping Zhu, Jian Lu, and Xiaowu Ni, "Experimental and numerical studies for nondestructive evaluation of human enamel using laser ultrasonic technique," Appl. Opt. 52, 6896-6905 (2013)

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