A sensitive double beam laser interferometer for studying high-frequency piezoelectric and electrostrictive strains
- 1 August 1989
- journal article
- Published by AIP Publishing in Review of Scientific Instruments
- Vol. 60 (8), 2701-2705
- https://doi.org/10.1063/1.1140644
Abstract
A double beam laser interferometer is built up to study high‐frequency piezoelectric and electrostrictive strains. The system is capable of resolving a displacement of 10−2 Å using lock‐in detection and measuring the strain all the way to the piezoelectric resonance frequencies using a digital oscilloscope for detection. The interference of sample bending to the detected signal is effectively avoided.Keywords
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