Sound field reconstruction using acousto-optic tomography

The Journal of the Acoustical Society of America
Antoni Torras-RosellFinn Jacobsen

Abstract

When sound propagates through a medium, it results in pressure fluctuations that change the instantaneous density of the medium. Under such circumstances, the refractive index that characterizes the propagation of light is not constant, but influenced by the acoustic field. This kind of interaction is known as the acousto-optic effect. The formulation of this physical phenomenon into a mathematical problem can be described in terms of the Radon transform, which makes it possible to reconstruct an arbitrary sound field using tomography. The present work derives the fundamental equations governing the acousto-optic effect in air, and demonstrates that it can be measured with a laser Doppler vibrometer in the audible frequency range. The tomographic reconstruction is tested by means of computer simulations and measurements. The main features observed in the simulations are also recognized in the experimental results. The effectiveness of the tomographic reconstruction is further confirmed with representations of the very same sound field measured with a traditional microphone array.

References

Jan 6, 2001·The Journal of the Acoustical Society of America·T A Pitts, J F Greenleaf
Feb 5, 2004·The Journal of the Acoustical Society of America·Andy R HarlandJohn R Tyrer
Dec 5, 1986·Science·P M Sheehan, C L Morse
Feb 5, 2008·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·O Casula, D Royer
Jan 1, 1993·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·X JiaM Lassoued
Mar 13, 2008·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Ludwig Bahr, Reinhard Lerch
Jan 1, 1987·Applied Optics·U Wernekinck, W Merzkirch
Jan 14, 2011·Shinrigaku kenkyu : The Japanese journal of psychology·Masanori Oikawa, Haruka Oikawa
Jul 12, 2012·The Journal of the Acoustical Society of America·Antoni Torras-RosellFinn Jacobsen

❮ Previous
Next ❯

Citations

Jul 12, 2012·The Journal of the Acoustical Society of America·Antoni Torras-RosellFinn Jacobsen
Jun 25, 2014·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Sue Ann SeahSriram Subramanian
Jul 15, 2015·Ultrasonics·Brian E AndersonLukasz Pieczonka
Jun 22, 2015·The Journal of the Acoustical Society of America·Petr YuldashevPhilippe Blanc-Benon
Oct 31, 2016·The Journal of the Acoustical Society of America·Cagdas TunaDouglas L Jones
Jan 22, 2015·Optics Express·Karl BertlingThierry Bosch
Feb 16, 2019·Optics Letters·Sudheesh K RajputYasuhiro Awatsuji
May 3, 2019·Applied Optics·Sudheesh K Rajput, Osamu Matoba
May 3, 2019·The Journal of the Acoustical Society of America·Eero KoponenAki Pulkkinen
Jul 15, 2016·Optics Express·Kenji IshikawaMinoru Yoshii
Nov 10, 2016·Applied Optics·Philip G Westergaard, Mikael Lassen
Sep 3, 2020·The Journal of the Acoustical Society of America·Francesc LluísSven Ewan Shepstone
Dec 3, 2020·The Journal of the Acoustical Society of America·Kenji IshikawaYasuhiro Oikawa
Apr 3, 2021·Applied Optics·Sudheesh K RajputYasuhiro Awatsuji
Sep 3, 2021·The Journal of the Acoustical Society of America·Kenji IshikawaKatsuya Oguri
Nov 8, 2018··Sudheesh K. RajputOsamu Matoba

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.