Single-sided Marchenko focusing of compressional and shear waves

Title

Single-sided Marchenko focusing of compressional and shear waves

 Author

Wapenaar, C.P.A.

Faculty

Civil Engineering and Geosciences

 Department

Geoscience & Engineering

 Date

2014-12-31

 Abstract

In time-reversal acoustics, waves recorded at the boundary of a strongly scattering medium are sent back into the medium to focus at the original source position. This requires that the medium can be accessed from all sides. We discuss a focusing method for media that can be accessed from one side only.We show how complex focusing functions, emitted from the top surface into the medium, cause independent foci for compressional and shear waves. The focused fields are isotropic and act as independent virtual sources for these wave types inside the medium.We foresee important applications in nondestructive testing of construction materials and seismological monitoring of processes inside the Earth.

 To reference this document use:

http://resolver.tudelft.nl/uuid:5c923f77-d6d2-470d-bda6-08d1dff30b80

 ISSN

1539-3755

 Source

Physical Review E, 90 (6), 2014

 Part of collection

Institutional Repository

 Document type

journal article

 Rights

(c) 2014 American Physical Society
Files
PDF 317289.pdf 6.04 MB
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