Extracting 220 Hz information from 55 Hz field data by near-field superresolution imaging

Gaurav Dutta; Abdullah AlTheyab; Ahmad Tarhini; Sherif Hanafy; Gerard T. Schuster

doi:10.1093/gji/ggw197

Extracting 220 Hz information from 55 Hz field data by near-field superresolution imaging

Gaurav Dutta^*, Abdullah AlTheyab, Ahmad Tarhini, Sherif Hanafy, Gerard T. Schuster

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Field experiments are used to unequivocally demonstrate seismic superresolution imaging of subwavelength objects in the near-field region of the source. The field test is for a conventional hammer source striking a metal plate near subwavelength scatterers and the seismic data are recorded by vertical-component geophones in the far-field locations of the sources. Timereversal mirrors (TRMs) are then used to refocus the scattered energy with subwavelength resolution to the position of the original source. A spatial resolution of λ/10, where λ is the dominant wavelength associated with the data, is seen in the field tests that exceeds the Abbe resolution limit of λ/2.

Original language	English
Pages (from-to)	1194-1203
Number of pages	10
Journal	Geophysical Journal International
Volume	206
Issue number	2
DOIs	https://doi.org/10.1093/gji/ggw197
State	Published - 1 Aug 2016
Externally published	Yes

Bibliographical note

Publisher Copyright:
© The Authors 2016.

Keywords

Acoustic properties
Controlled source seismology
Wave propagation
Wave scattering and diffraction

ASJC Scopus subject areas

Geophysics
Geochemistry and Petrology

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10.1093/gji/ggw197

Cite this

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title = "Extracting 220 Hz information from 55 Hz field data by near-field superresolution imaging",

abstract = "Field experiments are used to unequivocally demonstrate seismic superresolution imaging of subwavelength objects in the near-field region of the source. The field test is for a conventional hammer source striking a metal plate near subwavelength scatterers and the seismic data are recorded by vertical-component geophones in the far-field locations of the sources. Timereversal mirrors (TRMs) are then used to refocus the scattered energy with subwavelength resolution to the position of the original source. A spatial resolution of λ/10, where λ is the dominant wavelength associated with the data, is seen in the field tests that exceeds the Abbe resolution limit of λ/2.",

keywords = "Acoustic properties, Controlled source seismology, Wave propagation, Wave scattering and diffraction",

author = "Gaurav Dutta and Abdullah AlTheyab and Ahmad Tarhini and Sherif Hanafy and Schuster, \{Gerard T.\}",

note = "Publisher Copyright: {\textcopyright} The Authors 2016.",

year = "2016",

month = aug,

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doi = "10.1093/gji/ggw197",

language = "English",

volume = "206",

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journal = "Geophysical Journal International",

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AU - Dutta, Gaurav

AU - AlTheyab, Abdullah

AU - Tarhini, Ahmad

AU - Hanafy, Sherif

AU - Schuster, Gerard T.

N1 - Publisher Copyright: © The Authors 2016.

PY - 2016/8/1

Y1 - 2016/8/1

N2 - Field experiments are used to unequivocally demonstrate seismic superresolution imaging of subwavelength objects in the near-field region of the source. The field test is for a conventional hammer source striking a metal plate near subwavelength scatterers and the seismic data are recorded by vertical-component geophones in the far-field locations of the sources. Timereversal mirrors (TRMs) are then used to refocus the scattered energy with subwavelength resolution to the position of the original source. A spatial resolution of λ/10, where λ is the dominant wavelength associated with the data, is seen in the field tests that exceeds the Abbe resolution limit of λ/2.

AB - Field experiments are used to unequivocally demonstrate seismic superresolution imaging of subwavelength objects in the near-field region of the source. The field test is for a conventional hammer source striking a metal plate near subwavelength scatterers and the seismic data are recorded by vertical-component geophones in the far-field locations of the sources. Timereversal mirrors (TRMs) are then used to refocus the scattered energy with subwavelength resolution to the position of the original source. A spatial resolution of λ/10, where λ is the dominant wavelength associated with the data, is seen in the field tests that exceeds the Abbe resolution limit of λ/2.

KW - Acoustic properties

KW - Controlled source seismology

KW - Wave propagation

KW - Wave scattering and diffraction

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DO - 10.1093/gji/ggw197

M3 - Article

AN - SCOPUS:84978396720

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SP - 1194

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JO - Geophysical Journal International

JF - Geophysical Journal International

IS - 2

ER -

Extracting 220 Hz information from 55 Hz field data by near-field superresolution imaging

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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