@inbook{18d95d2cf22e42e9b3efdbf998e26a79,
title = "Air coupled piezoelectric detection of laser generated ultrasound",
abstract = "This paper presents the deployment of a pulsed laser to generate ultrasonic transients in samples of metal and their subsequent through air detection by a 1-3 connectivity composite transducer. Of particular interest is a class of reception devices that utilizes the coupling of lateral vibrational modes to extend effectively the thickness-mode bandwidth. The characteristics of the laser generation/air-coupled detection hybrid system are evaluated through experimentation. In particular, detection of multiple reflections within thin materials will be demonstrated with deconvolution techniques employed when necessary to enhance the relevant information. It will be concluded that the proposed approach has an acceptable sensitivity and bandwidth for many applications in which non-contact inspection is an advantage.",
author = "A. Gachagan and G. Hayward and Wright, \{W. M.D.\} and Hutchins, \{D. A.\}",
year = "1993",
doi = "10.1109/ultsym.1993.339496",
language = "English",
isbn = "0780312783",
series = "Proceedings of the IEEE Ultrasonics Symposium",
publisher = "Publ by IEEE",
pages = "651--654",
booktitle = "Proceedings of the IEEE Ultrasonics Symposium",
note = "Proceedings of the IEEE 1993 Ultrasonics Symposium ; Conference date: 31-10-1993 Through 03-11-1993",
}