| Autor: |
Oleksandr Polishko, Eugene Smirnov, Yuriy Pilgun, Alexander Yurchenko |
| Rok vydání: |
2014 |
| Předmět: |
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| Zdroj: |
2014 IEEE International Ultrasonics Symposium. |
| DOI: |
10.1109/ultsym.2014.0185 |
| Popis: |
An acousto-optic technique exploiting spatial filtration of light diffraction orders is used to visualize ultrasonic pulses in a TeO 2 crystal, which is an ultrasonic sensor body. In the experiments, images of a sought shear and a spurious longitudinal waves emitted by a shear wave transducer were recorded. An unexpected occurrence of a satellite ultrasonic pulse due to a mismatched size of the radiating transducer was observed. No conversion of a SH mode at its reflection from the oblique free surface of the crystal was observed. At the same time, an inexplicable displacement of an ultrasonic beam was discovered that might be a manifestation of the acoustic Goos-Hanchen effect. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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