Title :
Laser interferometers in physical acoustics
Author_Institution :
Dept. of Appl. Phys., Helsinki Univ. of Technol. (TKK), Helsinki, Finland
Abstract :
The paper gives a brief introduction to laser interferometry used in device characterization in physical acoustics. Principal interferometric concepts (homodyne and heterodyne detection) are discussed, and some general capabilities and limitations of the concepts and current setups are presented. Data processing possibilities via Fourier methods are discussed. Application examples and recent results are reviewed briefly.
Keywords :
Fourier analysis; acoustic signal detection; acoustic variables measurement; heterodyne detection; homodyne detection; light interferometry; Fourier method; data processing; device characterization; heterodyne detection; homodyne detection; laser interferometer; laser interferometry; physical acoustics; Acoustic devices; Acoustic measurements; Acoustic waves; Electric variables measurement; Interferometers; Laser theory; Optical resonators; Physics; Surface acoustic waves; Vibration measurement;
Conference_Titel :
Ultrasonics Symposium (IUS), 2009 IEEE International
Conference_Location :
Rome
Print_ISBN :
978-1-4244-4389-5
Electronic_ISBN :
1948-5719
DOI :
10.1109/ULTSYM.2009.5441587
