@article{c0b832740b9a4c74822eae0de8f3591f,
title = "Super-shear evanescent waves for non-contact elastography of soft tissues",
abstract = "We describe surface wave propagation in soft elastic media at speeds exceeding the bulk shear wave speed. By linking these waves to the elastodynamic Green's function, we derive a simple relationship to quantify the elasticity of a soft medium from the speed of this supershear evanescent wave (SEW). We experimentally probe SEW propagation in tissue-mimicking phantoms, human cornea ex vivo, and skin in vivo using a high-speed optical coherence elastography system. Measurements confirm the predicted relationship between SEW and bulk shear wave speeds, agreeing well with both theoretical and numerical models. These results suggest that SEW measurements may be a robust method to quantify elasticity in soft media, particularly in complex, bounded materials where dispersive Rayleigh-Lamb modes complicate measurements.",
author = "Pitre, {John J.} and Kirby, {Mitchell A.} and Liang Gao and Li, {David S.} and Tueng Shen and Wang, {Ruikang K.} and Matthew O'Donnell and Ivan Pelivanov",
note = "Funding Information: The authors wish to thank Antoine Ramier for helpful discussions. This work was supported, in part, by NIH Nos. R01EY026532, R01EY024158, R01EB016034, R01CA170734, and R01HL093140, Life Sciences Discovery Fund 3292512, the Coulter Translational Research Partnership Program, an unrestricted grant from the Research to Prevent Blindness, Inc., New York, New York, and the Department of Bioengineering at the University of Washington. M. Kirby was supported by NSF graduate fellowship (No. DGE-1256082). This material was based upon the work supported by the National Science Foundation Graduate Research Fellowship Program under Grant No. DGE-1256082. Any opinions, findings, and conclusions or recommendations expressed in this material are those of the authors and do not necessarily reflect the views of the funders. Publisher Copyright: {\textcopyright} 2019 Author(s).",
year = "2019",
month = aug,
day = "19",
doi = "10.1063/1.5111952",
language = "English (US)",
volume = "115",
journal = "Applied Physics Letters",
issn = "0003-6951",
publisher = "American Institute of Physics Publising LLC",
number = "8",
}