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Proceedings Paper

Homodyne and heterodyne optical interferometry for frequency dependent piezoelectric displacement measurement
Author(s): Keith Delahoussaye; Ruyan Guo; Amar Bhalla
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Paper Abstract

The electromechanical coupling in piezoelectric materials has been widely studied however a unified view of this interaction as function of frequencies using different measurement techniques has not previously been available. This study examines and compares multiple optical based homodyne and heterodyne interferometry techniques for displacement measurement over a wide range of frequencies and including a comparison made by using a commercial Laser Doppler Vibrometer. Ferroelectric lead titanate PbTiO3 with high ferroelectric strain is studied in this work. Frequency dependence of the electromechanical displacement is obtained using multiple techniques and the emphasis is given to near resonant frequency interrogations.

Paper Details

Date Published: 16 September 2014
PDF: 13 pages
Proc. SPIE 9200, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications VIII, 92001M (16 September 2014); doi: 10.1117/12.2066736
Show Author Affiliations
Keith Delahoussaye, The Univ. of Texas at San Antonio (United States)
Ruyan Guo, The Univ. of Texas at San Antonio (United States)
Amar Bhalla, The Univ. of Texas at San Antonio (United States)


Published in SPIE Proceedings Vol. 9200:
Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications VIII
Shizhuo Yin; Ruyan Guo, Editor(s)

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