Observation of the Talbot effect for ultrasonic waves

A. N. Morozov; M. P. Krikunova; B. G. Skuibin; E. V. Smirnov

doi:10.1134/S0021364017130136

Observation of the Talbot effect for ultrasonic waves

Authors: Morozov A.N.¹, Krikunova M.P.¹, Skuibin B.G.¹, Smirnov E.V.¹
Affiliations:
1. Bauman Moscow State Technical University
Issue: Vol 106, No 1 (2017)
Pages: 23-25
Section: Condensed Matter
URL: https://journals.rcsi.science/0021-3640/article/view/160412
DOI: https://doi.org/10.1134/S0021364017130136
ID: 160412

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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.