Reconstructing the Nonlinear Pressure Profile of an Ultrasonic Beam in Water Using Raman Lidar Signals

The nonlinear pressure profile at the focus of an ultrasonic beam radiated into water at a frequency of 2.0 MHz and having a shock front with amplitude of 50 MPa is reconstructed for the first time using Raman lidar signals. This is possible due to the relationship between the degree of deformation...

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Bibliographic Details
Published in:Bulletin of the Russian Academy of Sciences. Physics 2021-06, Vol.85 (6), p.665-669
Main Authors: Pershin, S. M., Brysev, A. P., Grishin, M. Ya, Lednev, V. N., Bunkin, A. F., Klopotov, R. V.
Format: Article
Language:English
Subjects:
Amplitudes
Elastic scattering
Hadrons
Heavy Ions
Hydrophones
Lidar
Nuclear Physics
Physics
Physics and Astronomy
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Summary:The nonlinear pressure profile at the focus of an ultrasonic beam radiated into water at a frequency of 2.0 MHz and having a shock front with amplitude of 50 MPa is reconstructed for the first time using Raman lidar signals. This is possible due to the relationship between the degree of deformation of the O–H stretching vibration band in the Raman spectrum of water, the amplitude of elastic scattering, and the pressure at the sounding site. The lidar profile is in good agreement with a PVDF hydrophone profile.
ISSN:1062-8738
1934-9432
DOI:10.3103/S1062873821060174