Observation of laser-induced elastic waves in agar skin phantoms using a high-speed camera and a laser-beam-deflection probe

• Published in: Biomedical optics express Vol. 9; no. 4; pp. 1893 - 1905
• Main Authors: Laloš, Jernej, Gregorčič, Peter, Jezeršek, Matija
• Format: Journal Article
• Language: English
• Published: United States Optical Society of America 01.04.2018
• Subjects: (170.0110) Imaging systems; (040.1490) Cameras; (170.0170) Medical optics and biotechnology; (100.3008) Image recognition, algorithms and filters; (280.3375) Laser induced ultrasonics; (140.3500) Lasers, erbium

We present an optical study of elastic wave propagation inside skin phantoms consisting of agar gel as induced by an Er:YAG (wavelength of 2.94 μm) laser pulse. A laser-beam-deflection probe is used to measure ultrasonic propagation and a high-speed camera is used to record displacements in ablation...