Abstract
Here we introduce electrostrictive hot-pressed lead magnesium niobate (PMN) with low lead titanate (PT) doping as a candidate transparent transducer material. We fabricate transparent high-frequency single-element transducers and characterize their optical, electrical, and acoustic properties. PMN-PT may offer sensitivity advantages over other transducer materials such as lithium niobate owing to its high electromechanical efficiency and bias-voltage sensitivity. The transparency of the fabricated transducer was measured ∼67% at 532 nm wavelength with a maximum electromechanical coefficient of ∼0.68 with a DC bias level of 100 V. The photoacoustic impulse response showed a center frequency of ∼27.6 MHz with a −6 dB bandwidth of ∼61% at a DC bias level of 40 V. Results demonstrate that the new transparent transducers hold promise for future optical-ultrasonic and photoacoustic imaging applications.
Original language | English |
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Pages (from-to) | 2606-2617 |
Number of pages | 12 |
Journal | OSA Continuum |
Volume | 4 |
Issue number | 10 |
DOIs | |
Publication status | Published - Oct 15 2021 |
Bibliographical note
Funding Information:Funding. Mitacs; Natural Sciences and Engineering Research Council of Canada (RGPIN-2018-05788).
Publisher Copyright:
© 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
ASJC Scopus Subject Areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering