Observation of the Talbot effect for ultrasonic waves |
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Authors: | A. N. Morozov M. P. Krikunova B. G. Skuibin E. V. Smirnov |
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Affiliation: | 1.Bauman Moscow State Technical University,Moscow,Russia |
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Abstract: | The diffraction of ultrasonic radiation on an amplitude diffraction grating in the near-field area (Fresnel diffraction) has been studied. The effect of self-imaging of the grating (Talbot effect) has been detected for ultrasonic radiation at distances from the grating in the range from z = 0 to z = 2L T, where L T is the Talbot length. The fractional Talbot effect, i.e., the ultrasonic image of the grating with the period d/2, has been observed. |
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